CVE-2026-31396

HIGHPre-NVD 7.87.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-04-03. A secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 4 sources updated this week

Also known asEUVD-2026-18774 (ENISA EUVD) · GHSA-p6rr-6vhx-2g77 (GitHub Security Advisories)Source: ENISA EUVD

7.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

net: macb: fix use-after-free access to PTP clock

PTP clock is registered on every opening of the interface and destroyed on every closing. However it may be accessed via get_ts_info ethtool call which is possible while the interface is just present in the kernel.

BUG: KASAN: use-after-free in ptp_clock_index+0x47/0x50 drivers/ptp/ptp_clock.c:426 Read of size 4 at addr ffff8880194345cc by task syz.0.6/948

CPU: 1 PID: 948 Comm: syz.0.6 Not tainted 6.1.164+ #109 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.1-0-g3208b098f51a-prebuilt.qemu.org 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x8d/0xba lib/dump_stack.c:106 print_address_description mm/kasan/report.c:316 [inline] print_report+0x17f/0x496 mm/kasan/report.c:420 kasan_report+0xd9/0x180 mm/kasan/report.c:524 ptp_clock_index+0x47/0x50 drivers/ptp/ptp_clock.c:426 gem_get_ts_info+0x138/0x1e0 drivers/net/ethernet/cadence/macb_main.c:3349 macb_get_ts_info+0x68/0xb0 drivers/net/ethernet/cadence/macb_main.c:3371 __ethtool_get_ts_info+0x17c/0x260 net/ethtool/common.c:558 ethtool_get_ts_info net/ethtool/ioctl.c:2367 [inline] __dev_ethtool net/ethtool/ioctl.c:3017 [inline] dev_ethtool+0x2b05/0x6290 net/ethtool/ioctl.c:3095 dev_ioctl+0x637/0x1070 net/core/dev_ioctl.c:510 sock_do_ioctl+0x20d/0x2c0 net/socket.c:1215 sock_ioctl+0x577/0x6d0 net/socket.c:1320 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x18c/0x210 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x6e/0xd8

Allocated by task 457: kmalloc include/linux/slab.h:563 [inline] kzalloc include/linux/slab.h:699 [inline] ptp_clock_register+0x144/0x10e0 drivers/ptp/ptp_clock.c:235 gem_ptp_init+0x46f/0x930 drivers/net/ethernet/cadence/macb_ptp.c:375 macb_open+0x901/0xd10 drivers/net/ethernet/cadence/macb_main.c:2920 __dev_open+0x2ce/0x500 net/core/dev.c:1501 __dev_change_flags+0x56a/0x740 net/core/dev.c:8651 dev_change_flags+0x92/0x170 net/core/dev.c:8722 do_setlink+0xaf8/0x3a80 net/core/rtnetlink.c:2833 __rtnl_newlink+0xbf4/0x1940 net/core/rtnetlink.c:3608 rtnl_newlink+0x63/0xa0 net/core/rtnetlink.c:3655 rtnetlink_rcv_msg+0x3c6/0xed0 net/core/rtnetlink.c:6150 netlink_rcv_skb+0x15d/0x430 net/netlink/af_netlink.c:2511 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x6d7/0xa30 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x97e/0xeb0 net/netlink/af_netlink.c:1872 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg+0x14b/0x180 net/socket.c:730 __sys_sendto+0x320/0x3b0 net/socket.c:2152 __do_sys_sendto net/socket.c:2164 [inline] __se_sys_sendto net/socket.c:2160 [inline] __x64_sys_sendto+0xdc/0x1b0 net/socket.c:2160 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x6e/0xd8

Freed by task 938: kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1729 [inline] slab_free_freelist_hook mm/slub.c:1755 [inline] slab_free mm/slub.c:3687 [inline] __kmem_cache_free+0xbc/0x320 mm/slub.c:3700 device_release+0xa0/0x240 drivers/base/core.c:2507 kobject_cleanup lib/kobject.c:681 [inline] kobject_release lib/kobject.c:712 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1cd/0x350 lib/kobject.c:729 put_device+0x1b/0x30 drivers/base/core.c:3805 ptp_clock_unregister+0x171/0x270 drivers/ptp/ptp_clock.c:391 gem_ptp_remove+0x4e/0x1f0 drivers/net/ethernet/cadence/macb_ptp.c:404 macb_close+0x1c8/0x270 drivers/net/ethernet/cadence/macb_main.c:2966 __dev_close_many+0x1b9/0x310 net/core/dev.c:1585 __dev_close net/core/dev.c:1597 [inline] __dev_change_flags+0x2bb/0x740 net/core/dev.c:8649 dev_change_fl ---truncated---

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
35
EG Risk 35/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity78% × 45%
Impact severity (EG Severity): CVSS 7.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.1% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.1%
EPSS %ILE
1st
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.8): severity, escalated by confirmed exploitation. This CVE's 7.8 is its impact severity (EG Severity), not escalated.

EG Severity
7.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.1% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-28). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

April 3, 2026

Last Modified

October 15, 2026

Advisory Details (8)

Auto-updated May 20, 2026
Patch available.
Web page

net: macb: fix use-after-free access to PTP clock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/eb652535e9ec795ef5c1078f7578eaaed755268b
Web page

net: macb: fix use-after-free access to PTP clock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8da13e6d63c1a97f7302d342c89c4a56a55c7015
Web page

net: macb: fix use-after-free access to PTP clock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8820ffe0975fd2efbe50453e9179c8e1c33a13d3
Web page

net: macb: fix use-after-free access to PTP clock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6b757f345eeea87ed5d8afd6de35b927a1a57a2f
Web page

net: macb: fix use-after-free access to PTP clock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5653af416a48f6c18f9626ae9df96f814f45ff34
Web page

net: macb: fix use-after-free access to PTP clock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/341d01087f821aa0f165fb1ffc8bfe4e50776da7
Web page

net: macb: fix use-after-free access to PTP clock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1f4714065b2bcbb0a4013fd355b84b848e6cc345
Web page

net: macb: fix use-after-free access to PTP clock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0bb848d8c64938024e45780f8032f1f67d3a3607

Vendor Advisories for CVE-2026-31396(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(27)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-10-29ubuntu
ubuntulinux-tools-raspi-nolpae (5.15.0.1106.104) @ jammy2026-10-29ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-10-29ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-10-29ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-10-29ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-10-29ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-10-29ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-10-29ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-10-29ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-10-29ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-10-29ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-10-29ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-10-29ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-10-29ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-10-29ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-10-29ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-10-29ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-10-29ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-10-29ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1104.108) @ jammy2026-10-29ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-10-29ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1112.122~20.04.1) @ focal2026-10-29ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-10-29ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-10-29ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-10-29ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-10-29ubuntu
linuxKernel @ 5.10.253 (fixes >=4.11.0)—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFix by version rangeDependents
linux5.10.103-1 ... 5.10.92-2 (53 versions)
  • every version up to 5.10.257-1: fixed in 5.10.257-1
—
linux-6.16.1.106-3~deb11u1 ... 6.1.164-1~deb11u1 (16 versions)
  • every version up to 6.1.170-1~deb11u1: fixed in 6.1.170-1~deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (48 versions)
  • every version up to 6.1.170-1: fixed in 6.1.170-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.38-1 ... 6.12.85-1~bpo12+1 (17 versions)
  • every version up to 6.12.85-1: fixed in 6.12.85-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.19~rc8-1~exp1 (123 versions)
  • every version up to 6.19.10-1: fixed in 6.19.10-1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(25)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 9× in last 7d / 43× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 95 of 262 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 5 repeat rows among the latest 100 are merged into the row they repeat. The 167 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  2. 2026-10-29 06:59 UTCEG score recompute
  3. 2026-10-29 06:59 UTCVendor advisory
  4. 2026-10-29 06:58 UTCGHSA enrichmentGHSA-p6rr-6vhx-2g77 · GitHub severity HIGH · GitHub CVSS 7.8
  5. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  6. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  7. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  8. 2026-10-25 14:36 UTCEG score recompute
  9. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  10. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  11. 2026-10-22 02:31 UTCEG score recompute
  12. 2026-10-22 02:31 UTCVendor advisory
  13. 2026-10-22 02:31 UTCGHSA enrichmentGHSA-p6rr-6vhx-2g77 · GitHub severity HIGH · GitHub CVSS 7.8
  14. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  15. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  16. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  17. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  18. 2026-10-18 03:48 UTCEG score recompute
  19. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  20. 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  21. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  22. 2026-10-15 02:37 UTCEG score recompute
  23. 2026-10-15 02:37 UTCVendor advisory
  24. 2026-10-15 02:36 UTCGHSA enrichmentGHSA-p6rr-6vhx-2g77 · GitHub severity HIGH · GitHub CVSS 7.8
  25. 2026-10-15 01:40 UTCEG score recompute
Show 70 more
  1. 2026-10-15 01:39 UTCGHSA enrichmentGHSA-p6rr-6vhx-2g77 · GitHub severity HIGH · GitHub CVSS 7.8
  2. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  3. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  4. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  5. 2026-10-12 16:15 UTCEG score recompute
  6. 2026-10-11 19:57 UTCEG score recompute
  7. 2026-10-11 17:11 UTCEG score recompute
  8. 2026-10-11 14:39 UTCEG score recompute
  9. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  11. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  12. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  13. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  14. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  15. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  16. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  17. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  18. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  19. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  20. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  21. 2026-09-28 00:49 UTCOSV refresh
  22. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  23. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  24. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  25. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  26. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  27. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  28. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  29. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  30. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  31. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  32. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  33. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  34. 2026-09-08 09:13 UTCEG score recompute
  35. 2026-09-08 09:13 UTCVendor advisory
  36. 2026-09-08 09:12 UTCGHSA enrichmentGHSA-p6rr-6vhx-2g77 · GitHub severity HIGH · GitHub CVSS 7.8
  37. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  38. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  39. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  40. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  41. 2026-09-02 11:14 UTCOSV refresh
  42. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  43. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  44. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  45. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  46. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  47. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  48. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  49. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  50. 2026-08-24 14:17 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  51. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  52. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  53. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  54. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  55. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  56. 2026-08-16 09:16 UTCEG score recompute
  57. 2026-08-16 09:16 UTCVendor advisory
  58. 2026-08-16 09:16 UTCGHSA enrichmentGHSA-p6rr-6vhx-2g77 · GitHub severity HIGH · GitHub CVSS 7.8
  59. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  60. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  61. 2026-08-14 18:51 UTCVendor advisory
  62. 2026-08-14 18:51 UTCGHSA enrichmentGHSA-p6rr-6vhx-2g77 · GitHub severity HIGH · GitHub CVSS 7.8
  63. 2026-08-14 05:42 UTCEG score recompute
  64. 2026-08-14 05:42 UTCVendor advisory
  65. 2026-08-14 05:42 UTCGHSA enrichmentGHSA-p6rr-6vhx-2g77 · GitHub severity HIGH · GitHub CVSS 7.8
  66. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  67. 2026-08-13 09:55 UTCVendor advisory
  68. 2026-08-13 09:55 UTCGHSA enrichmentGHSA-p6rr-6vhx-2g77 · GitHub severity HIGH · GitHub CVSS 7.8
  69. 2026-08-12 19:58 UTCEG score recompute
  70. 2026-08-12 19:58 UTCVendor advisory

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Frequently asked(5)

What is CVE-2026-31396?
CVE-2026-31396 is a high-severity vulnerability; its CVE record was published on April 3, 2026. In the Linux kernel, the following vulnerability has been resolved: net: macb: fix use-after-free access to PTP clock PTP clock is registered on every opening of the interface and destroyed on every closing. However it may be accessed via gettsinfo ethtool call which is possible while the interface…
When was the CVE record for CVE-2026-31396 published?
The CVE record for CVE-2026-31396 was published on April 3, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 15, 2026; the record at its source may have been updated since.
Is CVE-2026-31396 actively exploited?
CVE-2026-31396 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-31396?
CVE-2026-31396 has a CVSS base score of 7.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-31396?
A fix for CVE-2026-31396 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-31396 are linked in the Vendor Advisories panel on this page.

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