CVE-2017-8291: Artifex Ghostscript Type Confusion Vulnerability

High severity, CVSS 7.8. Actively exploited: in CISA KEV since 2022-05-24. EPSS: 97% chance of exploitation in the next 30 days.

Artifex Ghostscript through 2017-04-26 allows -dSAFER bypass and remote command execution via .rsdparams type confusion with a "/OutputFile (%pipe%" substring in a crafted .eps document that is an input to the gs program, as exploited in the wild in April 2017.

Affected products

• Artifex Ghostscript: before 9.21 (fixed in 9.21)
• Debian Debian Linux: version 8.0 only
• Red Hat Enterprise Linux Desktop: version 6.0 only; version 7.0 only
• Red Hat Enterprise Linux Eus: version 7.3 only; version 7.4 only; version 7.5 only; version 7.6 only; version 7.7 only
• Red Hat Enterprise Linux Server: version 6.0 only; version 7.0 only
• Red Hat Enterprise Linux Server Aus: version 7.3 only; version 7.4 only; version 7.6 only; version 7.7 only
• Red Hat Enterprise Linux Server Tus: version 7.3 only; version 7.6 only; version 7.7 only
• Red Hat Enterprise Linux Workstation: version 6.0 only; version 7.0 only

Published 2017-04-27. Last modified 2026-06-17.