Vulnerability in Matrix Specification

CVE-2025-54315

The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event uniqueness.

EPSS: 0.000 (6.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L.

Affected products

Matrix Specification — versions 0

Weakness classification (CWE)

CWE-837

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

Frequently asked questions

What is CVE-2025-54315?: CVE-2025-54315 is a high-severity vulnerability in Matrix Specification, classified under CWE-837. CVSS score: 7.1/10. Published 2025-10-02.
How severe is CVE-2025-54315?: High severity. CVSS v3 base score is 7.1 out of 10.
Is CVE-2025-54315 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.