Ubuntu Security Notices guidance
Vendor revision: Sep 14, 2026USN-8739-1 fixed vulnerabilities in ImageMagick.
Vulnerability intelligence
CVE-2026-56370 and is rated High severity with a CVSS score of 7.8. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.
USN-8739-1 fixed vulnerabilities in ImageMagick.
ImageMagick before 7.1.2-19 contains an out-of-bounds access vulnerability in ConnectedComponentsImage() when processing connected-components artifacts with invalid indices. Attackers can trigger access violations by specifying malformed connected-components definitions via CLI, causing denial of service or potential code execution.
Source: NVD