Blender before 4.5.15 and 5.x before 5.2.3 contains a heap buffer overflow vulnerability caused by integer overflow in ptcache_data_alloc() when reading point cache files. Attackers can supply a crafted point cache file with a large totpoint value alongside a .blend file to crash Blender or execute code as the user.
Fix
Patch, vendor advisory and mitigation references on NVD 3
- https://projects.blender.org/blender/blender/pulls/164279 patch
- https://projects.blender.org/blender/blender/commit/a0c62db3db61803f86e874bc05407890ce4a1e43 patch
- https://projects.blender.org/blender/blender/commit/4f8a3270213b1ee67b44fe122ace3debdec3de47 patch
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 8.5 · blender foundationNVD modified 2026-10-30 15:42
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 5
- https://projects.blender.org/blender/blender/pulls/164279 patch
- https://projects.blender.org/blender/blender/commit/a0c62db3db61803f86e874bc05407890ce4a1e43 patch
- https://projects.blender.org/blender/blender/commit/4f8a3270213b1ee67b44fe122ace3debdec3de47 patch
- https://projects.blender.org/blender/blender product
- https://www.vulncheck.com/advisories/blender-before-4.5.15-and-5-x-before-5.2.3-heap-buffer-overflow-via-point-cache third-party-advisory