CVE-2022-40439Public exploitNetwork attack vector

Service interruption via unreleased file-stream allocation

Published Sep 14, 2022 · Updated Aug 3, 2024

Memory leak in Bento4 mp42ts 1.6.0-639 allows remote attackers to interrupt processing by supplying a crafted media file. ASan traces show unreleased allocations originating in AP4_StdcFileByteStream::Create while mp42ts parses the input. A user must cause mp42ts to process the file; repeated triggers consume memory and can exhaust resources without affecting confidentiality or integrity.

CVSS severity6.5
Medium
EPSS probability0.68%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leak in Bento4 mp42ts 1.6.0-639 allows remote attackers to interrupt processing by supplying a crafted media file. ASan traces show unreleased allocations originating in AP4_StdcFileByteStream::Create while mp42ts parses the input. A user must cause mp42ts to process the file; repeated triggers consume memory and can exhaust resources without affecting confidentiality or integrity.

The record

CVE
CVE-2022-40439
Published
Sep 14, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-401, T1499, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 14, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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?

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

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-401Missing Release of Memory after Effective Lifetime
T1499Endpoint Denial of Service
T1204.002User Execution: Malicious File

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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