CVE-2025-50343

critical · 9.8

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.

9.8

CVSS

0.4%

EPSS (exploit prob.)

34th

EPSS percentile

2025-12-30

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-122

Affected products

Vendor	Product	Affected versions
matio_project	matio	1.5.28

Check a specific version with /api/v1/cve/match.

References

https://github.com/tbeu/matio/issues/275
https://github.com/zakkanijia/POC/blob/main/matio/CVE-2025-50343/matio.md
https://github.com/tbeu/matio/issues/275
https://github.com/zakkanijia/POC/blob/main/matio/CVE-2025-50343/matio.md

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-50343