CVE-2022-29537Public exploit

Denial of service via HEVC NALU over-read

Published Apr 20, 2022 · Updated Aug 3, 2024

An out-of-bounds read in GPAC 2.0.0 allows local users to interrupt MP4Box by supplying a crafted HEVC media file. The gp_rtp_builder_do_hevc function in src/ietf/rtp_pck_mpeg4.c trusts malformed HEVC NALU length values and reads beyond the heap buffer allocated for the sample. Exploitation requires opening or processing the crafted file with MP4Box; observed impact is a process crash and service interruption, without demonstrated data disclosure or modification.

CVSS severity5.5
Medium
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An out-of-bounds read in GPAC 2.0.0 allows local users to interrupt MP4Box by supplying a crafted HEVC media file. The gp_rtp_builder_do_hevc function in src/ietf/rtp_pck_mpeg4.c trusts malformed HEVC NALU length values and reads beyond the heap buffer allocated for the sample. Exploitation requires opening or processing the crafted file with MP4Box; observed impact is a process crash and service interruption, without demonstrated data disclosure or modification.

The record

CVE
CVE-2022-29537
Published
Apr 20, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-125, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 20, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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

4.3NVDAV:N/AC:M/Au:N/C:N/I:N/A:P
5.5NVDCVSS: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 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-125Out-of-bounds Read
T1203Exploitation for Client Execution

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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