CVE-2025-15538Public exploit

Process crash via unchecked UV index read

Published Jan 18, 2026 · Updated Jan 18, 2026

Use after free in Assimp 6.0.0 through 6.0.2 allows local users to crash an importing process with a crafted LWO file. FindUVChannels reads uv.abAssigned and rawData using a face-supplied vertex index after vector storage reallocation, without checking the index against either vector. Exploitation requires local low-privileged access and LWO processing; the demonstrated consequence is an AddressSanitizer-detected process crash.

CVSS severity7.8
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use after free in Assimp 6.0.0 through 6.0.2 allows local users to crash an importing process with a crafted LWO file. FindUVChannels reads uv.abAssigned and rawData using a face-supplied vertex index after vector storage reallocation, without checking the index against either vector. Exploitation requires local low-privileged access and LWO processing; the demonstrated consequence is an AddressSanitizer-detected process crash.

The record

CVE
CVE-2025-15538
Published
Jan 18, 2026
Updated
Jan 18, 2026
Vendor
Open Asset Import Library
Product
Assimp
Classifications
CWE-119, CWE-416
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.0.0
  2. Affected versionversion=6.0.1
  3. Affected versionversion=6.0.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Open Asset Import Library · Assimpversion=6.0.0; version=6.0.1; version=6.0.2

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.3VulDB CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
1.9VulDB CNACVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
4.3VulDB CNAAV:L/AC:L/Au:S/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-416Use After Free

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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