An issue was discovered in libmatio.a in matio (aka MAT File I/O Library) 1.5.13. There is a stack-based buffer over-read in the function InflateDimensions() in inflate.c when called from ReadNextCell in mat5.c.
Severity
CVSS 3.0
9.1 critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
EPSS
2.0% chance of exploitation in the next 30 days; higher than 81% of CVEs (scores of 2026-10-31)