CVE-2025-37796wifi: at76c50x: fix use after free access in at76_disconnect
- 7.8HighCVSS base score
- 0.20%Exploitation in 30 daysEPSS · top 90% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 15 days later
· 15 days later
Published
- 13 months later
· 13 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.20% · top 90% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 29e20aa6c6aff35c81d4da2e2cd516dadb569061 – < c731cdfddcf1be1590d5ba8c9b508f98e3a2b3d6
- affected 29e20aa6c6aff35c81d4da2e2cd516dadb569061 – < 6e4ab3e574c2a335b40fa1f70d1c54fcb58ab33f
- affected 29e20aa6c6aff35c81d4da2e2cd516dadb569061 – < 3c619aec1f538333b56746d2f796aab1bca5c9a5
- affected 29e20aa6c6aff35c81d4da2e2cd516dadb569061 – < 5e7df74745700f059dc117a620e566964a2e8f2c
- affected 29e20aa6c6aff35c81d4da2e2cd516dadb569061 – < 7ca513631fa6ad3011b8b9197cdde0f351103704
- affected 29e20aa6c6aff35c81d4da2e2cd516dadb569061 – < a9682bfef2cf3802515a902e964d774e137be1b9
- affected 29e20aa6c6aff35c81d4da2e2cd516dadb569061 – < 152721cbae42713ecfbca6847e0f102ee6b19546
- affected 29e20aa6c6aff35c81d4da2e2cd516dadb569061 – < 27c7e63b3cb1a20bb78ed4a36c561ea4579fd7da
- affected 3.17
- unaffected < 3.17
- unaffected 5.4.293 – ≤ 5.4.*
- unaffected 5.10.237 – ≤ 5.10.*
- unaffected 5.15.181 – ≤ 5.15.*
- unaffected 6.1.135 – ≤ 6.1.*
- unaffected 6.6.88 – ≤ 6.6.*
- unaffected 6.12.25 – ≤ 6.12.*
- unaffected 6.14.4 – ≤ 6.14.*
- unaffected 6.15 – ≤ *
References
References10
- https://git.kernel.org/stable/c/c731cdfddcf1be1590d5ba8c9b508f98e3a2b3d6 (opens in a new tab)
- https://git.kernel.org/stable/c/6e4ab3e574c2a335b40fa1f70d1c54fcb58ab33f (opens in a new tab)
- https://git.kernel.org/stable/c/3c619aec1f538333b56746d2f796aab1bca5c9a5 (opens in a new tab)
- https://git.kernel.org/stable/c/5e7df74745700f059dc117a620e566964a2e8f2c (opens in a new tab)
- https://git.kernel.org/stable/c/7ca513631fa6ad3011b8b9197cdde0f351103704 (opens in a new tab)
- https://git.kernel.org/stable/c/a9682bfef2cf3802515a902e964d774e137be1b9 (opens in a new tab)
- https://git.kernel.org/stable/c/152721cbae42713ecfbca6847e0f102ee6b19546 (opens in a new tab)
- https://git.kernel.org/stable/c/27c7e63b3cb1a20bb78ed4a36c561ea4579fd7da (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-13020 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-37796)Record last updated .