CVE-2025-39849 — Out-of-bounds Write in Linux
Severity
7.8HIGHNVD
EPSS
0.0%
top 94.64%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedSep 19
Latest updateApr 9
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9
Affected Packages3 packages
▶CVEListV5linux/linuxdd43f8f90206054e7da7593de0a334fb2cd0ea88 — 8e751d46336205abc259ed3990e850a9843fb649+6
Also affects: Debian Linux 11.0
Patches
🔴Vulnerability Details
3GHSA▶
GHSA-wfxg-5hf2-j2vg: In the Linux kernel, the following vulnerability has been resolved:
wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result()
If the ssid-↗2025-09-22
OSV▶
CVE-2025-39849: In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result() If the ssid->d↗2025-09-19