7.8

CVE-2025-21326: microsoft windows_server_2022_23h2 Type Confusion

CVSS: 7.8v3.1HighAnalyzed
Published 14-01-2025Last modified 09-06-2026
Open JSON

Vulnerability summary

CVE-2025-21326 is a high (CVSS 7.8) Type Confusion vulnerability in microsoft windows_server_2022_23h2. EPSS estimates a 1.37% chance of exploitation in the next 30 days, higher than 71.7% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
1.37%
0%100%
Low · +0.06 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 14-01-2025
    PublishedVulnerability first disclosed.
  2. 09-06-2026
    Last modifiedVulnerability information updated.

Description

Internet Explorer Remote Code Execution Vulnerability

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

1.37%

Chance of exploitation in the next 30 days

Percentile

72%

Versus all other CVEs

30-day change

+0.06 pp

From 1.32% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.37%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Microsoft4 products

1 vendor · 4 products

References

1 links