CVE-2026-63865

HIGHPre-NVD 8.88.8
EchelonGraph scoreMEDIUM confidence

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

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-19. The CNA's CVSS baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: the CNA's CVSS, EPSS, GitHub Security Advisory
Trending — 4 sources updated this week
8.8EG
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: 8.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks

bpf_lsm_task_to_inode() is called under rcu_read_lock() and bpf_lsm_inet_conn_established() is called from softirq context, so neither hook can be used by sleepable LSM programs.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
40
EG Risk 40/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity88% × 45%
The EG Score, 8.8 of 10.
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
2nd
KEV
Not listed

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

July 19, 2026

Last Modified

August 5, 2026

Advisory Details (7)

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

bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f0fc2a9828171205244a28013f02889f50b71c9f
Web page

bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/beaf0e96b1da74549a6cabd040f9667d83b2e97e
Web page

bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/989f1b93907de1753a814996222da375f07e579b
Web page

bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/452a927cddcd67478d030e646f41cb904a93156f
Web page

bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/281f2a214565a5cbf8b7355a65738d80bd19b8c5
Web page

bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/26b380a3ca0b605fd8860995ed6a208f276dd316
Web page

bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0d918263c9bfc86078edb2e2f7302a0c6ce42b7c

Vendor Advisories for CVE-2026-63865(1)

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

Patch Availability(30)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-10-13ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-10-13ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-10-13ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-10-13ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-10-13ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-10-13ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-10-13ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-10-13ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1104.108) @ jammy2026-10-13ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-10-13ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-10-13ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1112.122~20.04.1) @ focal2026-10-13ubuntu
ubuntulinux-tools-gcp-edge (7.0.0-1011.11~24.04.1) @ noble2026-10-13ubuntu
ubuntulinux-tools-raspi-nolpae (5.15.0.1106.104) @ jammy2026-10-13ubuntu
ubuntulinux-tools-azure-edge (7.0.0-1014.14~24.04.1) @ noble2026-10-13ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-10-13ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-10-13ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-10-13ubuntu
ubuntulinux-tools-oracle-edge (7.0.0-1011.11~24.04.1) @ noble2026-10-13ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-10-13ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-10-13ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-10-13ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-10-13ubuntu
ubuntulinux-tools-nvidia-hwe-22.04-edge (6.8.0-1059.62~22.04.1) @ jammy2026-10-13ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-10-13ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-10-13ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-10-13ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-10-13ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-10-13ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-10-13ubuntu

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

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (53 versions)
  • every version up to 6.1.176-1: fixed in 6.1.176-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.38-1 ... 6.12.94-1~bpo12+1 (27 versions)
  • every version up to 6.12.94-1: fixed in 6.12.94-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (141 versions)
  • every version up to 7.0.10-1: fixed in 7.0.10-1
—

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 13× in last 7d / 47× 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 100 of 370 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. None are among the latest 100 rows. The 270 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  2. 2026-10-13 11:50 UTCEG score recompute
  3. 2026-10-13 11:50 UTCVendor advisory
  4. 2026-10-13 11:50 UTCGHSA enrichmentGHSA-cx6c-jx3r-hwpq · GitHub severity HIGH · GitHub CVSS 8.8
  5. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  6. 2026-10-12 15:48 UTCEG score recompute
  7. 2026-10-11 19:33 UTCEG score recompute
  8. 2026-10-11 16:48 UTCEG score recompute
  9. 2026-10-11 14:09 UTCEG score recompute
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  11. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  12. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  13. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  14. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  15. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  16. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  17. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  18. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  19. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  20. 2026-10-01 09:06 UTCEG score recompute
  21. 2026-10-01 09:06 UTCVendor advisory
  22. 2026-10-01 09:06 UTCGHSA enrichmentGHSA-cx6c-jx3r-hwpq · GitHub severity HIGH · GitHub CVSS 8.8
  23. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  24. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  25. 2026-09-28 07:36 UTCEG score recompute
Show 75 more
  1. 2026-09-28 07:36 UTCVendor advisory
  2. 2026-09-28 07:36 UTCGHSA enrichmentGHSA-cx6c-jx3r-hwpq · GitHub severity HIGH · GitHub CVSS 8.8
  3. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  4. 2026-09-24 04:16 UTCEG score recompute
  5. 2026-09-24 04:16 UTCVendor advisory
  6. 2026-09-24 04:16 UTCGHSA enrichmentGHSA-cx6c-jx3r-hwpq · GitHub severity HIGH · GitHub CVSS 8.8
  7. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  8. 2026-09-23 02:12 UTCEG score recompute
  9. 2026-09-23 02:12 UTCVendor advisory
  10. 2026-09-23 02:11 UTCGHSA enrichmentGHSA-cx6c-jx3r-hwpq · GitHub severity HIGH · GitHub CVSS 8.8
  11. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  12. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  13. 2026-09-18 04:25 UTCVendor advisory
  14. 2026-09-18 04:24 UTCGHSA enrichmentGHSA-cx6c-jx3r-hwpq · GitHub severity HIGH · GitHub CVSS 8.8
  15. 2026-09-17 10:02 UTCEG score recompute
  16. 2026-09-17 10:02 UTCVendor advisory
  17. 2026-09-17 10:01 UTCGHSA enrichmentGHSA-cx6c-jx3r-hwpq · GitHub severity HIGH · GitHub CVSS 8.8
  18. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  19. 2026-09-16 13:09 UTCEG score recompute
  20. 2026-09-16 13:09 UTCVendor advisory
  21. 2026-09-16 13:09 UTCGHSA enrichmentGHSA-cx6c-jx3r-hwpq · GitHub severity HIGH · GitHub CVSS 8.8
  22. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  23. 2026-09-14 04:31 UTCEG score recompute
  24. 2026-09-14 04:31 UTCVendor advisory
  25. 2026-09-14 04:31 UTCGHSA enrichmentGHSA-cx6c-jx3r-hwpq · GitHub severity HIGH · GitHub CVSS 8.8
  26. 2026-09-13 16:14 UTCVendor advisory
  27. 2026-09-13 16:14 UTCGHSA enrichmentGHSA-cx6c-jx3r-hwpq · GitHub severity HIGH · GitHub CVSS 8.8
  28. 2026-09-13 03:37 UTCEG score recompute
  29. 2026-09-13 03:37 UTCVendor advisory
  30. 2026-09-13 03:37 UTCGHSA enrichmentGHSA-cx6c-jx3r-hwpq · GitHub severity HIGH · GitHub CVSS 8.8
  31. 2026-09-12 10:21 UTCVendor advisory
  32. 2026-09-12 10:20 UTCGHSA enrichmentGHSA-cx6c-jx3r-hwpq · GitHub severity HIGH · GitHub CVSS 8.8
  33. 2026-09-11 19:42 UTCEG score recompute
  34. 2026-09-11 19:42 UTCVendor advisory
  35. 2026-09-11 19:42 UTCGHSA enrichmentGHSA-cx6c-jx3r-hwpq · GitHub severity HIGH · GitHub CVSS 8.8
  36. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  37. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  38. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  39. 2026-09-07 23:42 UTCEG score recompute
  40. 2026-09-07 23:42 UTCVendor advisory
  41. 2026-09-07 23:41 UTCGHSA enrichmentGHSA-cx6c-jx3r-hwpq · GitHub severity HIGH · GitHub CVSS 8.8
  42. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  43. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  44. 2026-09-06 13:05 UTCVendor advisory
  45. 2026-09-06 13:05 UTCGHSA enrichmentGHSA-cx6c-jx3r-hwpq · GitHub severity HIGH · GitHub CVSS 8.8
  46. 2026-09-05 20:13 UTCEG score recompute
  47. 2026-09-05 20:13 UTCVendor advisory
  48. 2026-09-05 20:13 UTCGHSA enrichmentGHSA-cx6c-jx3r-hwpq · GitHub severity HIGH · GitHub CVSS 8.8
  49. 2026-09-05 15:31 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  50. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  51. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  52. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  53. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  54. 2026-08-31 03:59 UTCEG score recompute
  55. 2026-08-31 03:59 UTCVendor advisory
  56. 2026-08-31 03:59 UTCGHSA enrichmentGHSA-cx6c-jx3r-hwpq · GitHub severity HIGH · GitHub CVSS 8.8
  57. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  58. 2026-08-30 15:41 UTCVendor advisory
  59. 2026-08-30 15:41 UTCGHSA enrichmentGHSA-cx6c-jx3r-hwpq · GitHub severity HIGH · GitHub CVSS 8.8
  60. 2026-08-30 03:00 UTCEG score recompute
  61. 2026-08-30 03:00 UTCVendor advisory
  62. 2026-08-30 03:00 UTCGHSA enrichmentGHSA-cx6c-jx3r-hwpq · GitHub severity HIGH · GitHub CVSS 8.8
  63. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  64. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  65. 2026-08-27 21:24 UTCEG score recompute
  66. 2026-08-27 21:24 UTCVendor advisory
  67. 2026-08-27 21:24 UTCGHSA enrichmentGHSA-cx6c-jx3r-hwpq · GitHub severity HIGH · GitHub CVSS 8.8
  68. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  69. 2026-08-27 03:39 UTCVendor advisory
  70. 2026-08-27 03:38 UTCGHSA enrichmentGHSA-cx6c-jx3r-hwpq · GitHub severity HIGH · GitHub CVSS 8.8
  71. 2026-08-26 15:18 UTCEG score recompute
  72. 2026-08-26 15:18 UTCVendor advisory
  73. 2026-08-26 15:17 UTCGHSA enrichmentGHSA-cx6c-jx3r-hwpq · GitHub severity HIGH · GitHub CVSS 8.8
  74. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  75. 2026-08-26 02:51 UTCVendor advisory

Frequently asked(5)

What is CVE-2026-63865?
CVE-2026-63865 is a high-severity vulnerability; its CVE record was published on July 19, 2026. In the Linux kernel, the following vulnerability has been resolved: bpf: Drop tasktoinode and inetconnestablished from lsm sleepable hooks bpflsmtasktoinode() is called under rcureadlock() and bpflsminetconnestablished() is called from softirq context, so neither hook can be used by sleepable LSM…
When was the CVE record for CVE-2026-63865 published?
The CVE record for CVE-2026-63865 was published on July 19, 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 August 5, 2026; the record at its source may have been updated since.
Is CVE-2026-63865 actively exploited?
CVE-2026-63865 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (2nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-63865?
CVE-2026-63865 has a CVSS base score of 8.8 (the CNA's own assessment, by linux; NVD's own analysis pending).
How do I remediate CVE-2026-63865?
A fix for CVE-2026-63865 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-63865 are linked in the Vendor Advisories panel on this page.

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