CVE-2026-10229Public exploit

Local process crash via unchecked bone index

Published Jun 1, 2026 · Updated Jun 1, 2026

Heap buffer overflow in Assimp 6.0.0 through 6.0.4 allows local users to crash importing applications via a crafted Half-Life 1 MDL file. HL1MDLLoader::read_meshes uses each file-controlled vertex bone index directly as a temp_bones_ subscript without checking it against the declared bone count. Processing a model with an out-of-range bone reference causes an out-of-bounds heap read and process termination; the CNA also records low confidentiality and integrity impact.

CVSS severity5.3
Medium
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer overflow in Assimp 6.0.0 through 6.0.4 allows local users to crash importing applications via a crafted Half-Life 1 MDL file. HL1MDLLoader::read_meshes uses each file-controlled vertex bone index directly as a temp_bones_ subscript without checking it against the declared bone count. Processing a model with an out-of-range bone reference causes an out-of-bounds heap read and process termination; the CNA also records low confidentiality and integrity impact.

The record

CVE
CVE-2026-10229
Published
Jun 1, 2026
Updated
Jun 1, 2026
Vendor
Open Asset Import Library
Product
Assimp
Classifications
CWE-119, CWE-122
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 1, 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
  4. Affected versionversion=6.0.3
  5. Affected versionversion=6.0.4

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; version=6.0.3; version=6.0.4

Published CVSS scores

4.3VulDBAV:L/AC:L/Au:S/C:P/I:P/A:P
1.9VulDBCVSS: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
5.3VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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-122Heap-based Buffer Overflow

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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