CVE-2025-54315: high-severity vulnerability in Matrix specification
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.1epss 0.3%
The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event uniqueness.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L
Affected products
Matrix · Matrix specificationRelated CVEs — Matrix specification
In the same product, most dangerous first.