CVE-2023-46928Public exploit

Local crash via null AVC config dereference

Published Nov 1, 2023 · Updated Sep 6, 2024

Out-of-bounds write in GPAC MP4Box 2.3-DEV-rev605-gfc9e29089-master allows local users to crash processing via crafted media input. The gf_media_change_pl function writes AVC profile fields through a null configuration pointer when AVC configuration is absent, producing a segmentation fault. Exploitation requires local execution of MP4Box with attacker-controlled media; the demonstrated consequence is a process crash and service interruption, not data disclosure or modification.

CVSS severity5.5
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in GPAC MP4Box 2.3-DEV-rev605-gfc9e29089-master allows local users to crash processing via crafted media input. The gf_media_change_pl function writes AVC profile fields through a null configuration pointer when AVC configuration is absent, producing a segmentation fault. Exploitation requires local execution of MP4Box with attacker-controlled media; the demonstrated consequence is a process crash and service interruption, not data disclosure or modification.

The record

CVE
CVE-2023-46928
Published
Nov 1, 2023
Updated
Sep 6, 2024
Vendor
GPAC Project
Product
GPAC
Classifications
CWE-787, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 1, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 6, 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?

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  1. Affected versionversion=2.3-dev-rev605-gfc9e29089-master

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

GPAC Project · GPACversion=2.3-dev-rev605-gfc9e29089-master

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/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
T1203Exploitation for Client Execution

Public exploit references

  • poc3gpacproof of concept · demonstrated

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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