CVE-2022-3666Public exploit

Process crash via stale SampleBuffer read

Published Oct 26, 2022 · Updated Apr 14, 2025

Use-after-free in Bento4 1.6.0-639 mp42ts allows attackers to crash the process by supplying a crafted MP4 file. AP4_LinearReader::Advance retains a SampleBuffer reference after destroying the heap object, then reads eight bytes through the stale reference. Exploitation requires mp42ts to process the crafted file; public evidence demonstrates an AddressSanitizer abort but not code execution.

CVSS severity7.8
High
EPSS probability0.68%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Use-after-free in Bento4 1.6.0-639 mp42ts allows attackers to crash the process by supplying a crafted MP4 file. AP4_LinearReader::Advance retains a SampleBuffer reference after destroying the heap object, then reads eight bytes through the stale reference. Exploitation requires mp42ts to process the crafted file; public evidence demonstrates an AddressSanitizer abort but not code execution.

The record

CVE
CVE-2022-3666
Published
Oct 26, 2022
Updated
Apr 14, 2025
Vendor
Axiomatic Systems LLC
Product
Bento4
Classifications
CWE-416, CWE-119, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 26, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 14, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

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 vectorlocal
Required privilegesunauthenticated

What is affected?

Axiomatic Systems LLC · Bento4version=n/a

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-416Use After Free
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1204.002Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo