Strix
26.1K

CVE-2026-21222

MEDIUMCVSS 5.5/10EPSS 0.57%

Last modified

CVE-2026-21222 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Insertion of sensitive information into log file in Windows Kernel allows an authorized attacker to disclose information locally.. EPSS estimates a 0.57% chance of exploitation in the next 30 days.

Description

Insertion of sensitive information into log file in Windows Kernel allows an authorized attacker to disclose information locally.

Metrics

CVSS 3.1
5.5/10

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

EPSS Probability
0.57%

42.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
MicrosoftWindows 10 1607< 10.0.14393.8868
MicrosoftWindows 10 1809< 10.0.17763.8389
MicrosoftWindows 10 21h2< 10.0.19044.6937
MicrosoftWindows 10 22h2< 10.0.19045.6937
MicrosoftWindows 11 23h2< 10.0.22631.6649
MicrosoftWindows 11 24h2< 10.0.26100.7781
MicrosoftWindows Server 2012r2
MicrosoftWindows Server 2016< 10.0.14393.8868
MicrosoftWindows Server 2019< 10.0.17763.8389
MicrosoftWindows Server 2022< 10.0.20348.4711
MicrosoftWindows Server 2022 23h2< 10.0.25398.2149
MicrosoftWindows Server 2025< 10.0.26100.32313

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-21222?
Insertion of sensitive information into log file in Windows Kernel allows an authorized attacker to disclose information locally.
How severe is CVE-2026-21222?
CVE-2026-21222 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.57% probability of exploitation in the next 30 days.
How do I fix CVE-2026-21222?
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-2026-21222?

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

Scan your code now

Source: NVD / NIST