CVE-2026-98421: Linux kernel · wifi: mac80211: require a peer station for TDLS setup confirm
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in fce36d242a18ddf64731d816a37564103172da11 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 13:47 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in fce36d242a18ddf64731d816a37564103172da11, d0afa5395c46d73ad2090aa50209886e84f179bd, 742c762bee59c973684f70dfed7de4945d3141e2 +3
Exploitation evidence
Disclosed: evidence found.
CVE published 14 Oct 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
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
AI-suggested
This issue has been fixed in the Linux kernel. Users should update to a kernel version that includes the fix identified by the provided commit hashes. No additional mitigation is required beyond applying the official fix.
Description
A vulnerability in the Linux kernel's mac80211 wireless subsystem related to TDLS setup confirm handling has been fixed. The issue involved accepting a TDLS setup confirm frame for a peer station that does not exist, which triggered warnings and could lead to improper handling of TDLS frames.
References
- git.kernel.org/stable/c/6bae6ef511a29ef12ab969adeea691067d4d5d74 (opens in a new tab)
- git.kernel.org/stable/c/d0afa5395c46d73ad2090aa50209886e84f179bd (opens in a new tab)
- git.kernel.org/stable/c/742c762bee59c973684f70dfed7de4945d3141e2 (opens in a new tab)
- git.kernel.org/stable/c/fce36d242a18ddf64731d816a37564103172da11 (opens in a new tab)
- git.kernel.org/stable/c/1c0a5c96473b9e7a5f4c453ef6a13dc0f5589a4b (opens in a new tab)
- git.kernel.org/stable/c/038e1d126304fd25d507fd4e671232df57bd1799 (opens in a new tab)