CVE-2025-39849

wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result()

State: Published
Severity: 8.8 High
Published: Sep 19, 2025
Updated: Aug 5, 2026
Reserved: Apr 16, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	dd43f8f90206054e7da7593de0a334fb2cd0ea88 to before 8e751d46336205abc259ed3990e850a9843fb649Affected c38c701851011c94ce3be1ccb3593678d2933fd8 to before e472f59d02c82b511bc43a3f96d62ed08bf4537fAffected c38c701851011c94ce3be1ccb3593678d2933fd8 to before 31229145e6ba5ace3e9391113376fa05b7831edeAffected c38c701851011c94ce3be1ccb3593678d2933fd8 to before 5cb7cab7adf9b1e6a99e2081b0e30e9e59d07523Affected c38c701851011c94ce3be1ccb3593678d2933fd8 to before 62b635dcd69c4fde7ce1de4992d71420a37e51e3Affected bf3c348c5fdcf00a7eeed04a1b83e454d2dca2e5Affected 6.1.16 to before 6.1.151Affected 6.2.3 to before 6.3Affected
LinuxLinux	6.3Affected before 6.3Not affected 6.1.151 through 6.1.Not affected 6.6.105 through 6.6.Not affected 6.12.46 through 6.12.Not affected 6.16.6 through 6.16.Not affected 6.17 and laterNot affected

Product

Versions

LinuxLinux

dd43f8f90206054e7da7593de0a334fb2cd0ea88 to before 8e751d46336205abc259ed3990e850a9843fb649Affected
c38c701851011c94ce3be1ccb3593678d2933fd8 to before e472f59d02c82b511bc43a3f96d62ed08bf4537fAffected
c38c701851011c94ce3be1ccb3593678d2933fd8 to before 31229145e6ba5ace3e9391113376fa05b7831edeAffected
c38c701851011c94ce3be1ccb3593678d2933fd8 to before 5cb7cab7adf9b1e6a99e2081b0e30e9e59d07523Affected
c38c701851011c94ce3be1ccb3593678d2933fd8 to before 62b635dcd69c4fde7ce1de4992d71420a37e51e3Affected
bf3c348c5fdcf00a7eeed04a1b83e454d2dca2e5Affected
6.1.16 to before 6.1.151Affected
6.2.3 to before 6.3Affected

LinuxLinux

6.3Affected
before 6.3Not affected
6.1.151 through 6.1.*Not affected
6.6.105 through 6.6.*Not affected
6.12.46 through 6.12.*Not affected
6.16.6 through 6.16.*Not affected
6.17 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.