SB20260812148 - Out-of-bounds read in Linux kernel wireless atmel driver
Published: August 12, 2026
Security Bulletin ID
SB20260812148
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2026-68373)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: 5.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to an out-of-bounds read in at76_guess_freq() when processing truncated beacon or probe response frames during scanning. A remote attacker can send a specially crafted wireless management frame to disclose sensitive information.
The issue is reachable from at76_rx_tasklet() while scanning.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/61a799ffd1e5a4fd3702d547828b7ff3d161468e
- https://git.kernel.org/stable/c/bcde7249d45f52f994a9872bedf45994472ade77
- https://git.kernel.org/stable/c/e165a1d295e7e814e13b0f92c86e5d48309509ce
- https://git.kernel.org/stable/c/f742d9c98b5c504fc9e6744eef13a721c2aea486
- https://git.kernel.org/stable/c/fb1b50ab699211e777dca5ccfb648788b6a6e519