CVE-2026-19967
Open Asset Import Library Assimp File Compression.cpp decompressBlock heap-based overflow
- State
- Published
- Severity
- 5.3 Medium
- Published
- Aug 17, 2026
- Updated
- Aug 18, 2026
- Reserved
- Aug 16, 2026
Description
A security flaw has been discovered in Open Asset Import Library Assimp 17c12da. Impacted is the function Assimp::Compression::decompressBlock of the file code/Common/Compression.cpp of the component File Parser. Performing a manipulation results in heap-based buffer overflow. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 6.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 6.3 Medium | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 7.5 High | AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
AssimpOpen Asset Import Library |
|
References
- VDB-391144 | Open Asset Import Library Assimp File Compression.cpp decompressBlock heap-based overflowvdb-entrytechnical-description
- VDB-391144 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-19967 | CVE Analysis and Reportthird-party-advisory
- Submit #873127 | Assimp commit 17c12da Heap-based Buffer Overflowthird-party-advisory
- https://github.com/assimp/assimp/issues/6624issue-tracking
- https://github.com/user-attachments/files/27237535/poc.zipexploit
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