SB2026032581 - Out-of-bounds write in Linux kernel mt76 mt7925 driver
Published: March 25, 2026
Security Bulletin ID
SB2026032581
CSH 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 vulnerability.
1) Out-of-bounds write (CVE-ID: CVE-2026-23363)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper input validation in the mt7925_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 access and crash the system.
Exploitation does not require authentication or user interaction.
Remediation
Install update from vendor's website.