jpegoptim.c in jpegoptim 1.4.5 (fixed in 1.4.6) has an invalid use of realloc() and free(), which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact.
Severity
CVSS 3.0
8.8 high
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
1.8% chance of exploitation in the next 30 days; higher than 78% of CVEs (scores of 2026-10-31)