CVE-2022-47654Public exploit

Out-of-bounds access via unchecked HEVC layer index

Published Jan 5, 2023 · Updated Apr 10, 2025

Buffer overflow in GPAC MP4Box 2.1-DEV-rev593-g007bf61a0 allows local users to trigger out-of-bounds access via a crafted HEVC MOV file. gf_hevc_read_sps_bs_internal uses a file-derived layer identifier directly to index the 16-entry vps->rep_format_idx array without first translating or bounds-checking it. A user must direct MP4Box to import the file; the supplied proof of concept triggers a sanitizer-detected crash, and the report identifies code execution as an additional impact.

CVSS severity7.8
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in GPAC MP4Box 2.1-DEV-rev593-g007bf61a0 allows local users to trigger out-of-bounds access via a crafted HEVC MOV file. gf_hevc_read_sps_bs_internal uses a file-derived layer identifier directly to index the 16-entry vps->rep_format_idx array without first translating or bounds-checking it. A user must direct MP4Box to import the file; the supplied proof of concept triggers a sanitizer-detected crash, and the report identifies code execution as an additional impact.

The record

CVE
CVE-2022-47654
Published
Jan 5, 2023
Updated
Apr 10, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, 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

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
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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