CVE-2021-31292: Debian Linux

High severity, CVSS 7.5. EPSS: 2.6% chance of exploitation in the next 30 days.

An integer overflow in CrwMap::encode0x1810 of Exiv2 0.27.3 allows attackers to trigger a heap-based buffer overflow and cause a denial of service (DOS) via crafted metadata.

Affected products

• Debian Debian Linux: version 9.0 only; version 10.0 only
• EXIV2 EXIV2: version 0.27.3 only
• Fedoraproject Fedora: version 33 only; version 34 only

Published 2021-07-26. Last modified 2026-06-17.