CVE-2023-5998Public exploit

Crash via unchecked MPEG packet size

Published Nov 7, 2023 · Updated Sep 4, 2024

Out-of-bounds read in GPAC before 2.3.0-DEV allows local users to crash MP4Box by processing a crafted MPEG video file. In mpgviddmx_process, the MPEG video reframer adds stored header bytes to a packet size and passes that unchecked size to memcpy, reading beyond the remaining input. Triggering requires MP4Box to DASH-package the crafted input; the demonstrated consequence is process abort, and the report identifies heap disclosure as an exploitation primitive.

CVSS severity7.5
High
EPSS probability0.59%
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 read in GPAC before 2.3.0-DEV allows local users to crash MP4Box by processing a crafted MPEG video file. In mpgviddmx_process, the MPEG video reframer adds stored header bytes to a packet size and passes that unchecked size to memcpy, reading beyond the remaining input. Triggering requires MP4Box to DASH-package the crafted input; the demonstrated consequence is process abort, and the report identifies heap disclosure as an exploitation primitive.

The record

CVE
CVE-2023-5998
Published
Nov 7, 2023
Updated
Sep 4, 2024
Vendor
GPAC Project
Product
GPAC
Classifications
CWE-125
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 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?

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

  1. Affected versionversion=unspecified <2.3.0-DEV

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

GPAC Project · GPACversion=unspecified <2.3.0-DEV

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.0huntr.devCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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-125Out-of-bounds Read

Public exploit references

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Technologies

Your stack

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Your stack

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