CVE-2025-39849
HIGH severity · CVSS 8.8 · Out-of-bounds write
8.8CVSS HIGH
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result() If the ssid->datalen is more than IEEE80211_MAX_SSID_LEN (32) it would lead to memory corruption so add some bounds checking.
Impact & exploitability
Attack vectorAdjacent
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (2)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/31229145e6ba5ace3e9391113376fa05b7831ede ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/31229145e6ba5ace3e9391113376fa05b7831edePatch
- https://git.kernel.org/stable/c/5cb7cab7adf9b1e6a99e2081b0e30e9e59d07523Patch
- https://git.kernel.org/stable/c/62b635dcd69c4fde7ce1de4992d71420a37e51e3Patch
- https://git.kernel.org/stable/c/8e751d46336205abc259ed3990e850a9843fb649Patch
- https://git.kernel.org/stable/c/e472f59d02c82b511bc43a3f96d62ed08bf4537fPatch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlAdvisory
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html