What’s Vulnerable › Vulnerabilities

CVE-2020-36773

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-02-04 · updated 2026-06-17
• Weakness: CWE-416

Description

Artifex Ghostscript before 9.53.0 has an out-of-bounds write and use-after-free in devices/vector/gdevtxtw.c (for txtwrite) because a single character code in a PDF document can map to more than one Unicode code point (e.g., for a ligature).

Affected products

• Artifex Ghostscript: 9.51, 9.52, 9.52.1, 9.53.0-rc1, 9.53.0-rc2

References

• https://bugs.ghostscript.com/show_bug.cgi?id=702229
• https://bugzilla.opensuse.org/show_bug.cgi?id=1177922
• https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=8c7bd787defa071c96289b7da9397f673fddb874
• https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/tag/gs9530
• https://bugs.ghostscript.com/show_bug.cgi?id=702229
• https://bugzilla.opensuse.org/show_bug.cgi?id=1177922
• https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=8c7bd787defa071c96289b7da9397f673fddb874
• https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/tag/gs9530

Get alerted when CVE-2020-36773 or the next vulnerability affects your stack