CVE-2023-29574Public exploit

Process abort via oversized trun entry allocation

Published Apr 12, 2023 · Updated Feb 8, 2025

Uncontrolled memory allocation in Bento4 mp42avc 1.6.0-639 allows local users to abort the process with a crafted MP4 file. While parsing a trun atom, AP4_TrunAtom passes the file-supplied sample count to AP4_Array::SetItemCount, causing EnsureCapacity to request about 16 GiB without first bounding the count against the atom payload. Exploitation requires a user to run mp42avc on the malicious file; the demonstrated consequence is allocator failure and process termination, not code execution.

CVSS severity5.5
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled memory allocation in Bento4 mp42avc 1.6.0-639 allows local users to abort the process with a crafted MP4 file. While parsing a trun atom, AP4_TrunAtom passes the file-supplied sample count to AP4_Array::SetItemCount, causing EnsureCapacity to request about 16 GiB without first bounding the count against the atom payload. Exploitation requires a user to run mp42avc on the malicious file; the demonstrated consequence is allocator failure and process termination, not code execution.

The record

CVE
CVE-2023-29574
Published
Apr 12, 2023
Updated
Feb 8, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-119, T1204.002, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 8, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1204.002Malicious File
T1499.004Application or System Exploitation

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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