Staging Environment: Content and features may be unstable or change without notice.
Advisory details: pypa / pyassimp/PYSEC-2025-158
Advisory ID pypa/pyassimp/PYSEC-2025-158
Aliases CVE-2025-2151
PYSEC-2025-158
Summary A vulnerability classified as critical was found in Open Asset Import Library Assimp 5.4.3. This vulnerability affects the function Assimp::GetNextLine in the library ParsingUtils.h of the component File Handler. The manipulation leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
Status Published
Exploitability 0.5
Weighted Severity 7.9
Risk 4.0
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 8.8 https://github.com/pypa/advisory-database/blob/main/vulns/pyassimp/PYSEC-2025-158.yaml
Reference id Reference type URL
6016 Bug https://github.com/assimp/assimp/issues/6016
6026 Bug https://github.com/assimp/assimp/issues/6026
assimp_crash_1 Exploit https://github.com/sae-as-me/Crashes/raw/refs/heads/main/assimp/assimp_crash_1
?ctiid.299062 Other https://vuldb.com/?ctiid.299062
?id.299062 Advisory https://vuldb.com/?id.299062
?submit.510582 Advisory https://vuldb.com/?submit.510582
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://github.com/pypa/advisory-database/blob/main/vulns/pyassimp/PYSEC-2025-158.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/2025-03-10T13:35:23Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2025/2xxx/CVE-2025-2151.json

Source Advisory: vulnrichment/CVE-2025-2151

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