CVE-2026-98159: Linux kernel · wifi: mt76: mt7921: validate CLC firmware records
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in 46673662402884ca55a869e4ebe956e08e8b6b05 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 14:05 UTC
Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 1% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 46673662402884ca55a869e4ebe956e08e8b6b05, 740272d46ffc8231709a5e774cf5e4a5785b8a02, 9417c5818a0146980c2608fda94c908e604eb033 +3
Exploitation evidence
Disclosed: evidence found.
CVE published 25 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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AI-suggested
A fix is available and has been applied in the Linux kernel. Users should update to the fixed kernel version to remediate this vulnerability.
Description
A vulnerability in the Linux kernel's mt76 wireless driver for the mt7921 device involves improper validation of CLC firmware records. The firmware loader trusts the region count and record length without sufficient checks, which can lead to invalid memory accesses. The issue is addressed by validating the table and record bounds before dereferencing or copying.
References
- git.kernel.org/stable/c/46673662402884ca55a869e4ebe956e08e8b6b05 (opens in a new tab)
- git.kernel.org/stable/c/740272d46ffc8231709a5e774cf5e4a5785b8a02 (opens in a new tab)
- git.kernel.org/stable/c/602a950134ee2940136f60797e4457c3983b06ce (opens in a new tab)
- git.kernel.org/stable/c/3896be051e928c891922d91de94c99519d215dff (opens in a new tab)
- git.kernel.org/stable/c/3c505e2af16a9320f4355218394a955fbbc65322 (opens in a new tab)
- git.kernel.org/stable/c/9417c5818a0146980c2608fda94c908e604eb033 (opens in a new tab)