CVE-2026-98159wifi: mt76: mt7921: validate CLC firmware records
- 5.5MediumCVSS base score
- 0.11%Exploitation in 30 daysEPSS · top 98% 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: mt76: mt7921: validate CLC firmware records The CLC region is supplied by firmware, but the loader trusts the region count and each record length. A malformed image can make the region table pointer precede the firmware buffer, make the record loop fail to advance, or index phy->clc past its end. Validate the table and record bounds before dereferencing or copying.
Timeline
ID reserved
By Linux
Published
- 24 days later
· 24 days 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 · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.11% · top 98% of all CVEs (15 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125 – < 46673662402884ca55a869e4ebe956e08e8b6b05
- affected 23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125 – < 740272d46ffc8231709a5e774cf5e4a5785b8a02
- affected 23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125 – < 602a950134ee2940136f60797e4457c3983b06ce
- affected 23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125 – < 3896be051e928c891922d91de94c99519d215dff
- affected 23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125 – < 3c505e2af16a9320f4355218394a955fbbc65322
- affected 23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125 – < 9417c5818a0146980c2608fda94c908e604eb033
- affected 6.1
- unaffected < 6.1
- unaffected 6.1.189 – ≤ 6.1.*
- unaffected 6.6.158 – ≤ 6.6.*
- unaffected 6.12.111 – ≤ 6.12.*
- unaffected 6.18.53 – ≤ 6.18.*
- unaffected 7.2.7 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References6
- https://git.kernel.org/stable/c/46673662402884ca55a869e4ebe956e08e8b6b05 (opens in a new tab)
- https://git.kernel.org/stable/c/740272d46ffc8231709a5e774cf5e4a5785b8a02 (opens in a new tab)
- https://git.kernel.org/stable/c/602a950134ee2940136f60797e4457c3983b06ce (opens in a new tab)
- https://git.kernel.org/stable/c/3896be051e928c891922d91de94c99519d215dff (opens in a new tab)
- https://git.kernel.org/stable/c/3c505e2af16a9320f4355218394a955fbbc65322 (opens in a new tab)
- https://git.kernel.org/stable/c/9417c5818a0146980c2608fda94c908e604eb033 (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-2026-86990 (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-2026-98159)Record last updated .