CVE-2024-48423Public exploit

Local code execution via freed log-stream pointer

Published Oct 24, 2024 · Updated Oct 29, 2024

Use-after-free in CallbackToLogRedirector in Assimp 5.4.3 allows local users to execute arbitrary code through crafted model input. The logging path frees a LogToCallbackRedirector object during aiDetachLogStream, then dereferences its dangling log-stream pointer during a later import. Triggering the condition requires local execution of software using the affected library and attacker-controlled model data; the demonstrated result is a process abort, while the CVE record states arbitrary code execution.

CVSS severity7.8
High
EPSS probability0.26%
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 CallbackToLogRedirector in Assimp 5.4.3 allows local users to execute arbitrary code through crafted model input. The logging path frees a LogToCallbackRedirector object during aiDetachLogStream, then dereferences its dangling log-stream pointer during a later import. Triggering the condition requires local execution of software using the affected library and attacker-controlled model data; the demonstrated result is a process abort, while the CVE record states arbitrary code execution.

The record

CVE
CVE-2024-48423
Published
Oct 24, 2024
Updated
Oct 29, 2024
Vendor
Open Asset Import Library
Product
Assimp
Classifications
CWE-416, T1203
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Oct 24, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 29, 2024Record 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=5.4.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Open Asset Import Library · Assimpversion=5.4.3

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.4CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-416Use After Free
T1203Exploitation for Client Execution

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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