CVE-2021-37620: Debian Linux

Medium severity, CVSS 5.5. EPSS: 1.1% chance of exploitation in the next 30 days.

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An out-of-bounds read was found in Exiv2 versions v0.27.4 and earlier. The out-of-bounds read is triggered when Exiv2 is used to read the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service, if they can trick the victim into running Exiv2 on a crafted image file. The bug is fixed in version v0.27.5.

Affected products

• Debian Debian Linux: version 10.0 only
• EXIV2 EXIV2: before 0.27.5 (fixed in 0.27.5)
• Fedoraproject Fedora: version 33 only; version 34 only

Published 2021-08-09. Last modified 2026-06-17.