CVE-2022-3817Public exploitNetwork attack vector

Memory leak via unreleased H.264 parser allocation

Published Nov 1, 2022 · Updated Apr 15, 2025

Memory leak in mp4mux in Axiomatic Systems LLC Bento4 1.6.0-639 allows attackers to consume memory via a crafted H.264 stream. When malformed H.264 input lacks a sequence parameter set, mp4mux exits without releasing a 104-byte allocation created in its main routine. Processing the crafted stream requires user interaction, and public evidence demonstrates a per-run leak rather than memory corruption or an immediate crash.

CVSS severity4.3
Medium
EPSS probability0.82%
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 mp4mux in Axiomatic Systems LLC Bento4 1.6.0-639 allows attackers to consume memory via a crafted H.264 stream. When malformed H.264 input lacks a sequence parameter set, mp4mux exits without releasing a 104-byte allocation created in its main routine. Processing the crafted stream requires user interaction, and public evidence demonstrates a per-run leak rather than memory corruption or an immediate crash.

The record

CVE
CVE-2022-3817
Published
Nov 1, 2022
Updated
Apr 15, 2025
Vendor
Axiomatic Systems LLC
Product
Bento4
Classifications
CWE-404, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 1, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 15, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Axiomatic Systems LLC · Bento4version=n/a

Published CVSS scores

4.3VulDB CNACVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

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-404Improper Resource Shutdown or Release
T1499Endpoint Denial of Service

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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