SB20260325130 - Out-of-bounds write in Linux kernel mt76 mt7996 driver
Published: March 25, 2026
Security Bulletin ID
SB20260325130
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds write (CVE-ID: CVE-2026-23325)
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper input validation in the mt7996_mac_write_txwi_80211 function when handling Wi-Fi management frames. A remote attacker can send a specially crafted 802.11 frame with a short length to trigger an out-of-bounds write access and crash the system.
Exploitation does not require authentication or user interaction.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/45661d22639c4b747ef1bd0822b8e76e421a808a
- https://git.kernel.org/stable/c/60862846308627e9e15546bb647a00de44deb27b
- https://git.kernel.org/stable/c/a6605f61913155e130bfd04d438c3ce1a572fb0f
- https://git.kernel.org/stable/c/ca1adc04fc2cb1d9f1842e429debe6a520d54966
- https://git.kernel.org/stable/c/f4cdf6b43689e901a341e7147fcfb25057c38eae