CVE-2022-40884Public exploit

Process crash via unreleased file stream allocation

Published Oct 19, 2022 · Updated May 9, 2025

Memory leak in Bento4 1.6.0 mp4fragment allows local users to consume process memory by supplying a crafted MP4 file. AP4_StdcFileByteStream::Create allocates a 48-byte file-stream object during malformed-file processing but does not release it when that path terminates. Exploitation requires a user to invoke mp4fragment on attacker-controlled input and affects availability by consuming memory until the process crashes.

CVSS severity5.5
Medium
EPSS probability0.28%
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 1.6.0 mp4fragment allows local users to consume process memory by supplying a crafted MP4 file. AP4_StdcFileByteStream::Create allocates a 48-byte file-stream object during malformed-file processing but does not release it when that path terminates. Exploitation requires a user to invoke mp4fragment on attacker-controlled input and affects availability by consuming memory until the process crashes.

The record

CVE
CVE-2022-40884
Published
Oct 19, 2022
Updated
May 9, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-401
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 19, 2022CVE publishedPublication date reported by the CVE source.
  2. May 9, 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-401Missing Release of Memory after Effective Lifetime

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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