Vulnerability in Linux

CVE-2025-68254

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix out-of-bounds read in OnBeacon ESR IE parsing The Extended Supported Rates (ESR) IE handling in OnBeacon accessed *(p + 1 + ielen) and *(p + 2 + ielen) without verifying that these offsets lie within the received frame buffer. A malformed beacon with an ESR IE positioned at the end of the buffer could cause an out-of-bounds read, potentially triggering a kernel panic. Add a boundary check to ensure that the ESR IE body and the subsequent bytes are within the limits of the frame before attempting to access them. This prevents OOB reads caused by malformed beacon frames.

EPSS: 0.002 (6.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H.

Affected products

  • Linux — versions 554c0a3abf216c991c5ebddcdb2c08689ecd290b, 4.12, 0

References

Frequently asked questions

What is CVE-2025-68254?
CVE-2025-68254 is a high-severity vulnerability in Linux. CVSS score: 7.1/10. Published 2025-12-16.
How severe is CVE-2025-68254?
High severity. CVSS v3 base score is 7.1 out of 10.