CVE-2023-46427Public exploitNetwork attack vector

MP4Box crash via null period comparison

Published Mar 9, 2024 · Updated Aug 28, 2024

NULL pointer dereference in GPAC 2.3-DEV-rev588-g7edc40fee-master allows remote attackers to crash MP4Box via crafted DASH input. In gf_dash_setup_period in media_tools/dash_client.c, strcmp receives a null first argument while MP4Box sets up a crafted manifest period. Processing attacker-controlled media through MP4Box's DASH workflow is required; the demonstrated result is a zero-page read and process abort, while code execution or data disclosure is not demonstrated publicly.

CVSS severity9.8
Critical
EPSS probability1.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in GPAC 2.3-DEV-rev588-g7edc40fee-master allows remote attackers to crash MP4Box via crafted DASH input. In gf_dash_setup_period in media_tools/dash_client.c, strcmp receives a null first argument while MP4Box sets up a crafted manifest period. Processing attacker-controlled media through MP4Box's DASH workflow is required; the demonstrated result is a zero-page read and process abort, while code execution or data disclosure is not demonstrated publicly.

The record

CVE
CVE-2023-46427
Published
Mar 9, 2024
Updated
Aug 28, 2024
Vendor
GPAC Project
Product
GPAC
Classifications
CWE-476, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.3-dev-rev588-g7edc40fee-master

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

GPAC Project · GPACversion=2.3-dev-rev588-g7edc40fee-master

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/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.

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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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
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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