What is CVE-2025-68313?

CVE-2025-68313 is a high-severity vulnerability in Linux. CVSS score: 7.1/10. Published 2025-12-16.

How severe is CVE-2025-68313?

High severity. CVSS v3 base score is 7.1 out of 10.

Vulnerability in Linux

CVE-2025-68313

In the Linux kernel, the following vulnerability has been resolved: x86/CPU/AMD: Add RDSEED fix for Zen5 There's an issue with RDSEED's 16-bit and 32-bit register output variants on Zen5 which return a random value of 0 "at a rate inconsistent with randomness while incorrectly signaling success (CF=1)". Search the web for AMD-SB-7055 for more detail. Add a fix glue which checks microcode revisions. [ bp: Add microcode revisions checking, rewrite. ]

EPSS: 0.002 (5.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

Linux — versions 3e4147f33f8b647775357bae0248b9a2aeebfcd2, 6.8, 0

References

Frequently asked questions

What is CVE-2025-68313?: CVE-2025-68313 is a high-severity vulnerability in Linux. CVSS score: 7.1/10. Published 2025-12-16.
How severe is CVE-2025-68313?: High severity. CVSS v3 base score is 7.1 out of 10.