Staging Environment: Content and features may be unstable or change without notice.
Advisory details: pypa / pyassimp/PYSEC-2025-157
Advisory ID pypa/pyassimp/PYSEC-2025-157
Aliases CVE-2025-11277
PYSEC-2025-157
Summary A weakness has been identified in Open Asset Import Library Assimp 6.0.2. This affects the function Q3DImporter::InternReadFile of the file assimp/code/AssetLib/Q3D/Q3DLoader.cpp. Executing a manipulation can lead to heap-based buffer overflow. The attack needs to be launched locally. The exploit has been made available to the public and could be used for attacks.
Status Published
Exploitability 0.5
Weighted Severity 7.0
Risk 3.5
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (0)
There are no known CWE.
System Score Found at
cvssv3.1 7.8 https://github.com/pypa/advisory-database/blob/main/vulns/pyassimp/PYSEC-2025-157.yaml
Reference id Reference type URL
6358 Bug https://github.com/assimp/assimp/issues/6358
?ctiid.327011 Other https://vuldb.com/?ctiid.327011
?id.327011 Advisory https://vuldb.com/?id.327011
poc.zip Exploit https://github.com/user-attachments/files/22422643/poc.zip
?submit.658912 Advisory https://vuldb.com/?submit.658912
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/pypa/advisory-database/blob/main/vulns/pyassimp/PYSEC-2025-157.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-10-06T20:09:08Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2025/11xxx/CVE-2025-11277.json

Source Advisory: vulnrichment/CVE-2025-11277

View SSVC decision tree 
[{'Exploitation': 'poc'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]