CVE-2025-49090

HIGH EPSS 33.8%
Published Oct 2, 20259mo ago · Modified Jun 17, 20262w ago
7.1 CVSS 3.1
High
Find Similar
Published Oct 2, 2025 9mo ago
Last Modified Jun 17, 2026 2w ago

Description

The Matrix specification before 1.16 (i.e., with a room version before 12 and State Resolution before 2.1) has deficient state resolution.

CVSS Details

Base Score
7.1
Exploitability
1.8
Impact
4.7
Vector string
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L
Attack Vector Network
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality None
Integrity High
Availability Low

Threat Intelligence

EPSS Exploit Probability
33.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-642

References 4

  • github.com https://github.com/Nheko-Reborn/nheko/issues/1931
  • github.com https://github.com/matrix-org/matrix-spec/releases/tag/v1.16
  • matrix.org https://matrix.org/blog/2025/08/project-hydra-improving-state-res/
  • matrix.org https://matrix.org/blog/2025/08/security-release/

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.