CVE-2022-43035Public exploitNetwork attack vector

Process crash via out-of-bounds dec3 atom read

Published Oct 19, 2022 · Updated May 8, 2025

Heap-buffer overflow in Bento4 1.6.0-639 allows attackers to crash the mp42aac utility by supplying a crafted MP4 file. AP4_Dec3Atom::AP4_Dec3Atom reads one byte beyond a 24-byte heap allocation while parsing the file's EC-3 dec3 atom. Exploitation requires the file to be processed by mp42aac and terminates that process; no confidentiality or integrity impact is reported.

CVSS severity6.5
Medium
EPSS probability0.64%
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 Bento4 1.6.0-639 allows attackers to crash the mp42aac utility by supplying a crafted MP4 file. AP4_Dec3Atom::AP4_Dec3Atom reads one byte beyond a 24-byte heap allocation while parsing the file's EC-3 dec3 atom. Exploitation requires the file to be processed by mp42aac and terminates that process; no confidentiality or integrity impact is reported.

The record

CVE
CVE-2022-43035
Published
Oct 19, 2022
Updated
May 8, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 19, 2022CVE publishedPublication date reported by the CVE source.
  2. May 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 vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
6.5CISA-ADPCVSS:3.1/AV:N/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.

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No observations available

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

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1499.004Endpoint Denial of Service: Application 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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