CVE-2021-45262Public exploit

Application crash via invalid scene-command free

Published Dec 22, 2021 · Updated Aug 4, 2024

An invalid free in GPAC MP4Box 1.1.0 allows local users to crash the application by processing a crafted multimedia file. The gf_sg_command_del path treats a node-list field as an ordinary SVG attribute and frees a pointer that the field does not independently own. Exploitation requires user interaction to make MP4Box process the malicious file, and the published impact is limited to an application abort.

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 invalid free in GPAC MP4Box 1.1.0 allows local users to crash the application by processing a crafted multimedia file. The gf_sg_command_del path treats a node-list field as an ordinary SVG attribute and frees a pointer that the field does not independently own. Exploitation requires user interaction to make MP4Box process the malicious file, and the published impact is limited to an application abort.

The record

CVE
CVE-2021-45262
Published
Dec 22, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-416
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 22, 2021CVE 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

4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:N/A:P
5.5NIST NVDCVSS: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-416Use After Free

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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