CVE-2025-37796

HIGHNVD 7.87.8
EchelonGraph scoreMEDIUM confidence

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

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2025-05-01. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
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: 0.2%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

wifi: at76c50x: fix use after free access in at76_disconnect

The memory pointed to by priv is freed at the end of at76_delete_device function (using ieee80211_free_hw). But the code then accesses the udev field of the freed object to put the USB device. This may also lead to a memory leak of the usb device. Fix this by using udev from interface.

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 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)
Severity78% × 45%
The EG Score, 7.8 of 10.
Exploitation0.2% × 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
0.2%
EPSS %ILE
9th
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

May 1, 2025

Last Modified

November 3, 2025

Advisory Details (10)

Auto-updated Sep 24, 2026
Patch available.
Web pageMentions a patch (unverified)

[SECURITY] [DLA 4193-1] linux-6.1 security update

https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
Web pageMentions a patch (unverified)

[SECURITY] [DLA 4178-1] linux security update

https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
Web page

wifi: at76c50x: fix use after free access in at76_disconnect - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c731cdfddcf1be1590d5ba8c9b508f98e3a2b3d6
Web page

wifi: at76c50x: fix use after free access in at76_disconnect - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a9682bfef2cf3802515a902e964d774e137be1b9
Web page

wifi: at76c50x: fix use after free access in at76_disconnect - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7ca513631fa6ad3011b8b9197cdde0f351103704
Web page

wifi: at76c50x: fix use after free access in at76_disconnect - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6e4ab3e574c2a335b40fa1f70d1c54fcb58ab33f
Web page

wifi: at76c50x: fix use after free access in at76_disconnect - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5e7df74745700f059dc117a620e566964a2e8f2c
Web page

wifi: at76c50x: fix use after free access in at76_disconnect - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3c619aec1f538333b56746d2f796aab1bca5c9a5
Web page

wifi: at76c50x: fix use after free access in at76_disconnect - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/27c7e63b3cb1a20bb78ed4a36c561ea4579fd7da
Web page

wifi: at76c50x: fix use after free access in at76_disconnect - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/152721cbae42713ecfbca6847e0f102ee6b19546

Vendor Advisories for CVE-2025-37796(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-azure (6.14.0-1007.7) @ plucky2026-05-30ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.14.0-22.22) @ plucky2026-05-30ubuntu
ubuntulinux-tools-oracle-64k (6.14.0-1007.7) @ plucky2026-05-30ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.144.141) @ jammy2026-05-30ubuntu
ubuntulinux-tools-realtime-5.15 (5.15.0.1088.92) @ jammy2026-05-30ubuntu
ubuntulinux-tools-gcp-fips-5.15 (5.15.0.1087.77) @ jammy2026-05-30ubuntu
ubuntulinux-tools-intel-iotg-edge (5.15.0.1083.89~20.04.1) @ focal2026-05-30ubuntu
ubuntulinux-tools-raspi-nolpae (5.15.0.1083.81) @ jammy2026-05-30ubuntu
ubuntulinux-tools-kvm-5.15 (5.15.0.1084.80) @ jammy2026-05-30ubuntu
ubuntulinux-tools-azure-edge (5.15.0.1094.103~20.04.1) @ focal2026-05-30ubuntu
ubuntulinux-xilinx-zynqmp-tools-host (5.15.0-1052.56) @ jammy2026-05-30ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1094.79) @ jammy2026-05-30ubuntu
ubuntulinux-tools-azure-lts-22.04 (5.15.0.1094.92) @ jammy2026-05-30ubuntu
ubuntulinux-virtual-6.8 (6.8.0-100.100) @ noble2026-05-30ubuntu
ubuntulinux-tools-realtime-hwe-22.04 (6.8.1-1041.42~22.04.1) @ jammy2026-05-30ubuntu
ubuntulinux-tools-gcp-edge (6.8.0-1047.50~22.04.2) @ jammy2026-05-30ubuntu
ubuntulinux-tools-realtime-6.8.1 (6.8.1-1041.42) @ noble2026-05-30ubuntu
ubuntulinux-tools-fips-6.8 (6.8.0-100.100+fips1) @ noble2026-05-30ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-100.100~22.04.1) @ jammy2026-05-30ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1043.44) @ noble2026-05-30ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1047.50+fips1) @ noble2026-05-30ubuntu
ubuntulinux-tools-gke-64k-6.8 (6.8.0-1043.48) @ noble2026-05-30ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (6.8.0-100.100.1) @ noble2026-05-30ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1046.49.1) @ noble2026-05-30ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1023.24) @ noble2026-05-30ubuntu
ubuntulinux-tools-ibm-lts-24.04 (6.8.0-1044.44) @ noble2026-05-30ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1046.52) @ noble2026-05-30ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1046.52+fips1) @ noble2026-05-30ubuntu
ubuntulinux-tools-azure-edge (6.8.0-1051.57~22.04.1) @ jammy2026-05-30ubuntu
linuxKernel @ 5.4.293 (fixes >=3.17.0)—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 (45 versions)
  • every version up to 5.10.237-1: fixed in 5.10.237-1
—
linux-6.16.1.106-3~deb11u1 ... 6.1.129-1~deb11u1 (7 versions)
  • every version up to 6.1.137-1~deb11u1: fixed in 6.1.137-1~deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (37 versions)
  • every version up to 6.1.135-1: fixed in 6.1.135-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.12.25-1: fixed in 6.12.25-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.12.25-1: fixed in 6.12.25-1
—

Weakness Classification(1)

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

Additional Vendor Advisories

(24)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 10× in last 7d / 30× 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 87 of 154 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. 13 repeat rows among the latest 100 are merged into the row they repeat. The 67 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-12 17:08 UTCEG score recompute
  2. 2026-10-11 20:41 UTCEG score recompute
  3. 2026-10-11 18:51 UTCEG score recompute
  4. 2026-10-11 15:28 UTCEG score recompute
  5. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  6. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  7. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  8. 2026-10-08 17:09 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  9. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  10. 2026-10-06 15:16 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  11. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  12. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  13. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  14. 2026-10-02 16:13 UTCOSV refresh
  15. 2026-10-02 16:12 UTCOSV refresh
  16. 2026-10-02 16:12 UTCOSV refresh
  17. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  18. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  19. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  20. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  21. 2026-09-26 00:24 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  22. 2026-09-24 14:02 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  23. 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  24. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  25. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.2% · 9th percentile
Show 62 more
  1. 2026-09-17 19:29 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  2. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  3. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  4. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  5. 2026-09-13 13:54 UTCOSV refresh
  6. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  7. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  8. 2026-09-11 09:35 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  9. 2026-09-10 09:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  10. 2026-09-08 21:59 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  11. 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  12. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  13. 2026-09-04 05:05 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  14. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  15. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  16. 2026-08-30 19:16 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  17. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  18. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  19. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  20. 2026-08-26 14:45 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  21. 2026-08-25 15:10 UTCOSV refresh
  22. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  23. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  24. 2026-08-20 22:54 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  25. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  26. 2026-08-18 13:47 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  27. 2026-08-17 13:46 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  28. 2026-08-16 14:55 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  29. 2026-08-16 02:13 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  30. 2026-08-15 01:29 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  31. 2026-08-13 21:59 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  32. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  33. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  34. 2026-08-09 07:27 UTCOSV refresh
  35. 2026-08-07 16:26 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  36. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  37. 2026-08-04 15:09 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  38. 2026-08-04 10:37 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  39. 2026-08-03 10:35 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  40. 2026-08-02 02:26 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  41. 2026-08-01 04:15 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  42. 2026-07-30 16:27 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  43. 2026-07-30 01:29 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  44. 2026-07-28 15:35 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  45. 2026-07-26 14:54 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  46. 2026-07-25 14:17 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  47. 2026-07-24 14:17 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  48. 2026-07-24 07:41 UTCOSV refresh
  49. 2026-07-23 02:54 UTCEG score recompute
  50. 2026-07-22 14:07 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  51. 2026-07-21 15:24 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  52. 2026-07-20 17:07 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  53. 2026-07-19 14:30 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  54. 2026-07-19 02:28 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  55. 2026-07-16 17:02 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  56. 2026-07-15 16:57 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  57. 2026-07-15 01:59 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  58. 2026-07-13 22:29 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  59. 2026-07-13 06:12 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  60. 2026-07-12 05:46 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  61. 2026-07-11 08:27 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  62. 2026-07-09 19:09 UTCEPSS rescoreEPSS 0.2% · 6th percentile

Frequently asked(5)

What is CVE-2025-37796?
CVE-2025-37796 is a high-severity vulnerability; its CVE record was published on May 1, 2025. In the Linux kernel, the following vulnerability has been resolved: wifi: at76c50x: fix use after free access in at76_disconnect The memory pointed to by priv is freed at the end of at76deletedevice function (using ieee80211freehw). But the code then accesses the udev field of the freed object to…
When was the CVE record for CVE-2025-37796 published?
The CVE record for CVE-2025-37796 was published on May 1, 2025. 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 November 3, 2025; the record at its source may have been updated since.
Is CVE-2025-37796 actively exploited?
CVE-2025-37796 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (9th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-37796?
CVE-2025-37796 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2025-37796?
A fix for CVE-2025-37796 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2025-37796 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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