Open Asset Import Library
Monthly
Heap-based buffer overflow in Open Asset Import Library (Assimp) through version 6.0.2 allows a local low-privilege attacker to corrupt heap memory by supplying a crafted MD5 mesh file. The root cause, confirmed by the patch diff, is that `MakeDataUnique()` pre-allocated only `faces × 3` vertex slots when the output can grow to `numOrigVerts + faces × 3` - meshes declaring more original vertices than face corners overflow the allocation. No public exploit exists and the vulnerability is absent from CISA KEV; impact is locally bounded with a CVSS 4.0 base score of 4.8.
Heap-based buffer overflow in Open Asset Import Library (Assimp) at commit 17c12da allows remote attackers to corrupt heap memory by supplying a crafted MDL7 3DGS format file that triggers out-of-bounds writes in the AddBonesToNodeGraph_3DGS_MDL7 function via a manipulated bones_num argument. Any application embedding Assimp that accepts untrusted 3D model files is exposed, with no vendor patch released as the project has not responded to disclosure. A publicly available proof-of-concept exploit exists, meaningfully lowering the exploitation bar for opportunistic attackers.
Heap-based buffer overflow in Assimp's 3DGS MDL7 model parser allows remote attackers to crash applications processing maliciously crafted model files, causing a denial-of-service condition. The flaw resides in the ReadFaces_3DGS_MDL7 function and affects all Assimp versions through commit 17c12da (CPE wildcard-versioned), with a public proof-of-concept exploit already circulating on GitHub. No active exploitation is confirmed in CISA KEV; the CVSS 4.0 score of 5.3 (Medium) reflects availability-only impact gated by passive user interaction.
Heap-based buffer overflow in Open Asset Import Library (Assimp) commit 17c12da enables remote attackers to corrupt memory by supplying a crafted file processed by the decompressBlock routine in Compression.cpp. Any application embedding Assimp for 3D asset import is exposed when a user opens a malicious model file, making this a supply-chain-style risk across game engines, editors, and design tools that depend on the library. No vendor patch exists at time of analysis - the project was notified via GitHub issue #6624 but has not responded - and a public proof-of-concept archive has already been released, lowering the barrier to exploitation.
Heap-based buffer overflow in Assimp's CSM file handler (versions 6.0.0-6.0.5) allows a local low-privileged attacker to corrupt heap memory by supplying a crafted Character Studio Motion (CSM) file to any application that uses the library for asset import. The flaw exists in `Assimp::CSMImporter::InternReadFile` within `code/AssetLib/CSM/CSMLoader.cpp` and affects all Assimp 6.0.x releases confirmed by EUVD-2026-41601. No public exploit identified at time of analysis as a KEV entry, but a publicly available exploit code (poc.zip) exists, and the upstream patch commit is available though not yet confirmed in a tagged release.
Double-free heap corruption in Open Asset Import Library (Assimp) through version 6.0.4 allows remote low-privileged attackers to corrupt process memory by supplying a maliciously crafted PLY 3D model file to the ExportToBlob function in the PLY Model Handler. A publicly available proof-of-concept exploit was disclosed alongside the report. The CVSS 4.0 score of 5.3 (Medium) reflects limited confidentiality, integrity, and availability impact on the vulnerable system, though CWE-415 double-free conditions in C++ libraries carry latent potential for escalated impact depending on memory layout and heap state at runtime.
Heap-based buffer overflow in Open Asset Import Library (Assimp) versions up to 5.4.3 allows a local attacker with low privileges to corrupt heap memory by supplying a crafted 3D model file with manipulated width or height values to the SceneCombiner::Copy function in code/Common/SceneCombiner.cpp. A public proof-of-concept exploit has been disclosed via GitHub issue #6079, elevating real-world risk despite the local-only attack vector. No confirmed patched release has been independently verified at time of analysis, and exploitation conditions require only low-privilege local access with no user interaction beyond loading the malicious file.
Heap-based buffer overflow in Open Asset Import Library (Assimp) through version 6.0.2 allows a local low-privilege attacker to corrupt heap memory by supplying a crafted MD5 mesh file. The root cause, confirmed by the patch diff, is that `MakeDataUnique()` pre-allocated only `faces × 3` vertex slots when the output can grow to `numOrigVerts + faces × 3` - meshes declaring more original vertices than face corners overflow the allocation. No public exploit exists and the vulnerability is absent from CISA KEV; impact is locally bounded with a CVSS 4.0 base score of 4.8.
Heap-based buffer overflow in Open Asset Import Library (Assimp) at commit 17c12da allows remote attackers to corrupt heap memory by supplying a crafted MDL7 3DGS format file that triggers out-of-bounds writes in the AddBonesToNodeGraph_3DGS_MDL7 function via a manipulated bones_num argument. Any application embedding Assimp that accepts untrusted 3D model files is exposed, with no vendor patch released as the project has not responded to disclosure. A publicly available proof-of-concept exploit exists, meaningfully lowering the exploitation bar for opportunistic attackers.
Heap-based buffer overflow in Assimp's 3DGS MDL7 model parser allows remote attackers to crash applications processing maliciously crafted model files, causing a denial-of-service condition. The flaw resides in the ReadFaces_3DGS_MDL7 function and affects all Assimp versions through commit 17c12da (CPE wildcard-versioned), with a public proof-of-concept exploit already circulating on GitHub. No active exploitation is confirmed in CISA KEV; the CVSS 4.0 score of 5.3 (Medium) reflects availability-only impact gated by passive user interaction.
Heap-based buffer overflow in Open Asset Import Library (Assimp) commit 17c12da enables remote attackers to corrupt memory by supplying a crafted file processed by the decompressBlock routine in Compression.cpp. Any application embedding Assimp for 3D asset import is exposed when a user opens a malicious model file, making this a supply-chain-style risk across game engines, editors, and design tools that depend on the library. No vendor patch exists at time of analysis - the project was notified via GitHub issue #6624 but has not responded - and a public proof-of-concept archive has already been released, lowering the barrier to exploitation.
Heap-based buffer overflow in Assimp's CSM file handler (versions 6.0.0-6.0.5) allows a local low-privileged attacker to corrupt heap memory by supplying a crafted Character Studio Motion (CSM) file to any application that uses the library for asset import. The flaw exists in `Assimp::CSMImporter::InternReadFile` within `code/AssetLib/CSM/CSMLoader.cpp` and affects all Assimp 6.0.x releases confirmed by EUVD-2026-41601. No public exploit identified at time of analysis as a KEV entry, but a publicly available exploit code (poc.zip) exists, and the upstream patch commit is available though not yet confirmed in a tagged release.
Double-free heap corruption in Open Asset Import Library (Assimp) through version 6.0.4 allows remote low-privileged attackers to corrupt process memory by supplying a maliciously crafted PLY 3D model file to the ExportToBlob function in the PLY Model Handler. A publicly available proof-of-concept exploit was disclosed alongside the report. The CVSS 4.0 score of 5.3 (Medium) reflects limited confidentiality, integrity, and availability impact on the vulnerable system, though CWE-415 double-free conditions in C++ libraries carry latent potential for escalated impact depending on memory layout and heap state at runtime.
Heap-based buffer overflow in Open Asset Import Library (Assimp) versions up to 5.4.3 allows a local attacker with low privileges to corrupt heap memory by supplying a crafted 3D model file with manipulated width or height values to the SceneCombiner::Copy function in code/Common/SceneCombiner.cpp. A public proof-of-concept exploit has been disclosed via GitHub issue #6079, elevating real-world risk despite the local-only attack vector. No confirmed patched release has been independently verified at time of analysis, and exploitation conditions require only low-privilege local access with no user interaction beyond loading the malicious file.