CVE-2021-46238Public exploit

Service interruption via corrupted scene-graph node

Published Jan 21, 2022 · Updated Aug 4, 2024

Stack overflow in GPAC 1.1.0 allows context-dependent attackers to crash MP4Box by supplying a crafted media file. While dumping a VRML route, gf_dump_vrml_route passes an attacker-corrupted scene-graph node to gf_node_get_name, which dereferences its sgprivate pointer without establishing that the node is valid. Exploitation requires a user or workflow to process the file with MP4Box; the documented result is a segmentation fault and service interruption, not code execution.

CVSS severity5.5
Medium
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack overflow in GPAC 1.1.0 allows context-dependent attackers to crash MP4Box by supplying a crafted media file. While dumping a VRML route, gf_dump_vrml_route passes an attacker-corrupted scene-graph node to gf_node_get_name, which dereferences its sgprivate pointer without establishing that the node is valid. Exploitation requires a user or workflow to process the file with MP4Box; the documented result is a segmentation fault and service interruption, not code execution.

The record

CVE
CVE-2021-46238
Published
Jan 21, 2022
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 21, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:N/A:P

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-787Out-of-bounds Write
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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