Out-of-bounds Read in Linux
CVE-2025-39761
In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: Decrement TID on RX peer frag setup error handling Currently, TID is not decremented before peer cleanup, during error handling path of ath12k_dp_rx_peer_frag_setup(). This could lead to out-of-bounds access in peer->rx_tid[]. Hence, add a decrement operation for TID, before peer cleanup to ensures proper cleanup and prevents out-of-bounds access issues when the RX peer frag setup fails. Found during code review. Compile tested only.
Vulnerability class: Buffer Overflow
EPSS: 0.002 (4.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux — versions d889913205cf7ebda905b1e62c5867ed4e39f6c2, 6.3, 0
- Linux Linux_kernel
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-39761?
- CVE-2025-39761 is a high-severity vulnerability in Linux, classified under Out-of-bounds Read. CVSS score: 8.8/10. Published 2025-09-11.
- How severe is CVE-2025-39761?
- High severity. CVSS v3 base score is 8.8 out of 10.