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CVE-2025-5202

22
FAUCET Score

CVE-2025-5202 is an out-of-bounds read vulnerability in Open Asset Import Library (Assimp) version 5.4.3, specifically within the HL1MDLLoader::validate_header function. This flaw carries a high severity CVSS score of 7.8, indicating a significant risk, and can lead to high impact on confidentiality, integrity, and availability if exploited. While exploitation requires local access, public exploit details are available, though no active exploitation or widespread community discussion has been observed. The project plans to address this and other fuzzer-identified bugs in a future release.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.4.3CPE matchmatch criteria
cpe:2.3:a:assimp:assimp:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

4.8MEDIUM

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.23%
Probability of exploitation in next 30 days
EPSS Percentile
13.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0023 is in the 45th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2025-5202Low

assimp: Assimp: Out-of-bounds Read Vulnerability

May 26, 2025

References

github.com / assimp/assimp/issues/6128
Issue Tracking
github.com / assimp/assimp/issues/6174
ExploitIssue Tracking
github.com / user-attachments/files/20209236/reproducer.zip
Exploit
vuldb.com
Permissions RequiredThird Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry