Vulnerability · Published Dec 1, 2025 · Assigned by mitre
CVE-2025-63095
Medium 6.5
In plain English
A medium-severity improper input validation in the affected software. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.4%top 65.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Improper input validation in the BitstreamWriter::write_bits() function of Tempus Ex hello-video-codec v0.1.0 allows attackers to cause a Denial of Service (DoS) via a crafted input.
Affected products (as reported)
Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
References
- https://gist.github.com/thesmartshadow/b092e2493821491b981a069847a33064
- https://github.com/tempus-ex/hello-video-codec
- https://github.com/tempus-ex/hello-video-codec/tree/3e9551c699311ea12ad7f2fce9562fbc990d524c
- https://github.com/tempus-ex/hello-video-codec/blob/3e9551c699311ea12ad7f2fce9562fbc990d524c/src/bitstream.rs