CVEvulnerability
CVE-2026-22189
6.9 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2026-01-07
- Last modified
- 2026-07-14
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 6.9 MEDIUM — CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-121, CWE-787
Description
The egg-mkfont utility in Panda3D versions up to and including 1.10.16 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.
Affected configurations
• cmu panda3d (<= 1.10.16)
Related
References
- https://github.com/panda3d/panda3d Product
- https://seclists.org/fulldisclosure/2026/Jan/10 Exploit, Mailing List, Third Party Advisory
- https://www.panda3d.org/ Product
- https://www.vulncheck.com/advisories/panda3d-egg-mkfont-stack-buffer-overflow Third Party Advisory