Description
Panda3D versions up to and including 1.10.16 egg-mkfont contains a stack-based buffer overflow vulnerability due to use of an unbounded sprintf() call with attacker-controlled input. When constructing glyph filenames, egg-mkfont formats a user-supplied glyph pattern (-gp) into a fixed-size stack buffer without length validation. Supplying an excessively long glyph pattern string can overflow the stack buffer, resulting in memory corruption and a deterministic crash. Depending on build configuration and execution environment, the overflow may also be exploitable for arbitrary code execution.
References
https://seclists.org/fulldisclosure/2026/Jan/10
https://www.vulncheck.com/advisories/panda3d-egg-mkfont-stack-buffer-overflow
CVSS impact metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 · Critical
Information
Source identifier
Vulnerability status
Analyzed
Published
2026-01-07T21:16:03.067Z
5 days agoLast modified
2026-01-12T17:59:18.370Z
6 hours ago