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. ]

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/36ff93e66d0efc46e39fab536a9feec968daa766
https://git.kernel.org/stable/c/607b9fb2ce248cc5b633c5949e0153838992c152
https://git.kernel.org/stable/c/e980de2ff109dacb6d9d3a77f01b27c467115ecb

Configurations

No configuration.

History

30 Jul 2026, 06:24

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.1

16 Dec 2025, 16:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-12-16 16:16

Updated : 2026-07-30 06:24

NVD link : CVE-2025-68313

Mitre link : CVE-2025-68313

CVE.ORG link : CVE-2025-68313

JSON object : View

Products Affected

No product.

CWE

No CWE.

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