CVE-2025-21326 json
Internet Explorer Remote Code Execution Vulnerability
published 2025-01-14 21 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-2391
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 72%
- public exploits
- 0
- none known
Summary
Internet Explorer Remote Code Execution Vulnerability
Patch / fix
- Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1369
- Microsoft Windows Server 2025 10.0.26100.2894
- Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.2894
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 21 mo ago
Exploit prediction
1.37% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C |
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected products
- Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)
- Microsoft Windows Server 2025
- Microsoft Windows Server 2025 (Server Core installation)
Classification
- Weakness
-
- CWE-843 Access of Resource Using Incompatible Type
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2025-21326
vendor-advisory, patch
Sources
- CVE List CVE-2025-21326
- NVD CVE-2025-21326
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.