CVE-2022-47662Public exploit

Denial of service via recursive sample rewriting

Published Jan 5, 2023 · Updated Apr 10, 2025

Uncontrolled recursion in GPAC MP4Box 2.1-DEV-rev649-ga8f438d20 allows local users to crash the process via a crafted MP4 file. Media_GetSample calls gf_isom_nalu_sample_rewrite, which re-enters gf_isom_get_sample_ex and cycles back into Media_GetSample until the stack is exhausted. A user must cause MP4Box to concatenate the crafted file; the demonstrated segmentation fault interrupts that MP4Box process.

CVSS severity5.5
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled recursion in GPAC MP4Box 2.1-DEV-rev649-ga8f438d20 allows local users to crash the process via a crafted MP4 file. Media_GetSample calls gf_isom_nalu_sample_rewrite, which re-enters gf_isom_get_sample_ex and cycles back into Media_GetSample until the stack is exhausted. A user must cause MP4Box to concatenate the crafted file; the demonstrated segmentation fault interrupts that MP4Box process.

The record

CVE
CVE-2022-47662
Published
Jan 5, 2023
Updated
Apr 10, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-674, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 10, 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

5.5NIST NVDCVSS: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.

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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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-674Uncontrolled Recursion
T1204.002Malicious 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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