CVE-2025-22839

Name: CVE-2025-22839
Creator: NVD / NIST
Published: 2025-08-12T17:15:31.817+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.3/10EPSS 0.17%

Last modified Jun 17, 2026

CVE-2025-22839 is a high-severity vulnerability rated 7.3/10 on the CVSS scale. Insufficient granularity of access control in the OOB-MSM for some Intel(R) Xeon(R) 6 Scalable processors may allow a privileged user to potentially enable escalation of privilege via adjacent access.. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

Description

Insufficient granularity of access control in the OOB-MSM for some Intel(R) Xeon(R) 6 Scalable processors may allow a privileged user to potentially enable escalation of privilege via adjacent access.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L

CVSS 4.0

7.3/10

CVSS:4.0/AV:A/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.17%

6.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-1220

References

Timeline

Published: Aug 12, 2025
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2025-22839?

How severe is CVE-2025-22839?

CVE-2025-22839 has a CVSS score of 7.3/10 (HIGH severity). The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.

How do I fix CVE-2025-22839?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-22839?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST