CVE-2026-68546

high

Description

The vulnerability exists due to an out-of-bounds write flaw in the RemoteIo::Impl::populateBlocks() function. When Exiv2 processes network-hosted metadata via a remote URL instead of a local file, it fails to safely validate memory bounds during block structure allocation, enabling potential memory corruption or execution disruption.

Details

Source: Mitre, NVD

Published: 2026-09-03

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 8.4

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: High