CVE-2025-21326

Name: CVE-2025-21326
Creator: NVD / NIST
Published: 2025-01-14T18:15:57.17+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 1.29%

Last modified Jun 17, 2026

CVE-2025-21326 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Internet Explorer Remote Code Execution Vulnerability. EPSS estimates a 1.29% chance of exploitation in the next 30 days.

Description

Internet Explorer Remote Code Execution Vulnerability

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

1.29%

66.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-843

Affected Software

Vendor	Product	Versions
Microsoft	Windows Server 2022 23h2	< 10.0.25398.1369
Microsoft	Windows Server 2025	< 10.0.26100.2894

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21326Patch, Vendor Advisory

Timeline

Published: Jan 14, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-21326?

Internet Explorer Remote Code Execution Vulnerability

How severe is CVE-2025-21326?

CVE-2025-21326 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.29% probability of exploitation in the next 30 days.

How do I fix CVE-2025-21326?

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-2025-21326?

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

Scan your code now

Source: NVD / NIST