Vulnerability · Published Jan 14, 2026 · Assigned by mitre
CVE-2025-56226
Medium 5.3
In plain English
A medium-severity memory leak in the libsndfile package (Debian). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.4%top 68.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Libsndfile <=1.2.2 contains a memory leak vulnerability in the mpeg_l3_encoder_init() function within the mpeg_l3_encode.c file.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | libsndfile | no fix listed | DEBIAN-CVE-2025-56226 |
| Debian:13 | libsndfile | 1.2.2-2+deb13u1 | DEBIAN-CVE-2025-56226 |
| Debian:14 | libsndfile | 1.2.2-4 | DEBIAN-CVE-2025-56226 |
| Ubuntu:22.04:LTS | libsndfile | no fix listed | UBUNTU-CVE-2025-56226 |
| Ubuntu:24.04:LTS | libsndfile | no fix listed | UBUNTU-CVE-2025-56226 |
| Ubuntu:25.10 | libsndfile | no fix listed | UBUNTU-CVE-2025-56226 |
| Ubuntu:26.04:LTS | libsndfile | no fix listed | UBUNTU-CVE-2025-56226 |
| Ubuntu:26.10 | libsndfile | no fix listed | UBUNTU-CVE-2025-56226 |
Affected products (as reported)
Weakness: CWE-401 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L