CVE-2025-50343
CRITICAL9.8EPSS 0.08%Published: 12/30/2025Modified: 4/28/2026
Also known as:DEBIAN-CVE-2025-50343
Description
An issue was discovered in matio 1.5.28. A heap-based memory corruption can occur in Mat_VarCreateStruct() when the nfields value does not match the actual number of strings in the fields array. This leads to out-of-bounds reads and invalid memory frees during cleanup, potentially causing a segmentation fault or heap corruption.
Affected packages (1)
- Debian/libmatiofrom 0, < 1.5.19-2+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |