CVE-2023-37766Public exploit

Process crash via unchecked movie metadata pointer

Published Jul 11, 2023 · Updated Nov 8, 2024

A null-pointer dereference in GPAC 2.3-DEV-rev381-g817a848f6-master allows context-dependent attackers to crash MP4Box via a crafted file. gf_isom_remove_user_data dereferences movie->moov->udta without confirming that movie->moov exists while -udta processes malformed ISO media. The victim must invoke MP4Box's -udta operation on the file; the demonstrated consequence is an aborting process crash.

CVSS severity5.5
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A null-pointer dereference in GPAC 2.3-DEV-rev381-g817a848f6-master allows context-dependent attackers to crash MP4Box via a crafted file. gf_isom_remove_user_data dereferences movie->moov->udta without confirming that movie->moov exists while -udta processes malformed ISO media. The victim must invoke MP4Box's -udta operation on the file; the demonstrated consequence is an aborting process crash.

The record

CVE
CVE-2023-37766
Published
Jul 11, 2023
Updated
Nov 8, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 8, 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

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-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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