CVE-2026-98348: Linux kernel · wifi: libipw: reject too-short association responses
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 7.1 High.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 15% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 6 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
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix has been implemented to reject association response frames that are too short before processing any fixed fields, preventing the buffer over-read. Users should apply the official patches or update to fixed Linux kernel versions. Since this is a kernel vulnerability, upgrading the kernel to a patched version is the recommended remediation. Patch status is not explicitly stated in the input, so verify with the vendor advisory for current updates.
Description
A vulnerability in the Linux kernel's wifi libipw component allows malformed association responses that are too short to cause a buffer over-read. The libipw_handle_assoc_resp() function incorrectly calculates the length of information elements due to unsigned integer wraparound, leading to reading beyond the receive buffer. This issue affects specific Linux kernel versions and has been verified via testing under emulation.
References
- ubuntu.com/security/CVE-2026-98348 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-98348 (opens in a new tab)
- git.kernel.org/linus/adb7118b7d2cfd7e8213c17d7d2829f353017754 (opens in a new tab)
- git.kernel.org/stable/c/14cb425ba1f3a5d849e3bbc3d02d84e0ae195dbb (opens in a new tab)
- git.kernel.org/stable/c/400b89217058fac672134a0d4092c8493dadb8ad (opens in a new tab)
- git.kernel.org/stable/c/46aa75291056b6dc5faaf956dffdb3e9662477b0 (opens in a new tab)
- git.kernel.org/stable/c/766268b429ae26d8ca599031fa962b0fe4673120 (opens in a new tab)
- git.kernel.org/stable/c/adb7118b7d2cfd7e8213c17d7d2829f353017754 (opens in a new tab)
- git.kernel.org/stable/c/af1b69be19c34e28c0ae54bee954b58cd076969a (opens in a new tab)
- git.kernel.org/stable/c/d70bdb84cf1782039384c1ffa7a18b0303c286a7 (opens in a new tab)
- git.kernel.org/stable/c/e3025ecdb2057f866c09e059fc1466e81d6f243e (opens in a new tab)