CVE-2017-17723: EXIV2

High severity, CVSS 8.1. EPSS: 1.8% chance of exploitation in the next 30 days.

In Exiv2 0.26, there is a heap-based buffer over-read in the Exiv2::Image::byteSwap4 function in image.cpp. Remote attackers can exploit this vulnerability to disclose memory data or cause a denial of service via a crafted TIFF file.

Affected products

• EXIV2 EXIV2: version 0.26 only

Published 2018-02-12. Last modified 2026-06-17.