Vulnerability · Published Oct 2, 2025 · Assigned by mitre
CVE-2025-54315
High 7.1
In plain English
A high-severity security flaw in Matrix specification from Matrix. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities).
Severity (CVSS 3.1)7.1High
Exploit odds (30 days)0.3%top 73.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event uniqueness.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Matrix | Matrix specification | 0 – before 1.16 |
Weakness: CWE-837 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L