CVE-2020-27766: Debian Linux

High severity, CVSS 7.8. EPSS: 1.2% chance of exploitation in the next 30 days.

A flaw was found in ImageMagick in MagickCore/statistic.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of values outside the range of type `unsigned long`. This would most likely lead to an impact to application availability, but could potentially cause other problems related to undefined behavior. This flaw affects ImageMagick versions prior to 7.0.8-69.

Affected products

• Debian Debian Linux: version 9.0 only
• ImageMagick ImageMagick: before 6.9.10-69 (fixed in 6.9.10-69); from 7.0.0-0, before 7.0.8-69 (fixed in 7.0.8-69)

Published 2020-12-04. Last modified 2026-06-17.