CVE-2026-7135

GPAC MP4Box box_code_base.c elng_box_read out-of-bounds

MEDIUM
5.3
CVSS Score
Published: April 27, 2026 at 03:15 PM UTC
Updated: June 17, 2026 at 11:01 AM UTC
1 product affected across 1 vendorGpac

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.1%
SSVC
PoC

Description

A security flaw has been discovered in GPAC up to 26.03-DEV-rev105-g8f39a1eb3-master. Affected by this vulnerability is the function elng_box_read of the file src/isomedia/box_code_base.c of the component MP4Box. Performing a manipulation of the argument elng results in out-of-bounds read. The attack needs to be approached locally. The exploit has been released to the public and may be used for attacks. The patch is named cf6ac48c972eaaee2af270adc3f36615325deb3e. The affected component should be upgraded.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (7)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/359734
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/359734/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/800985
ExploitIssue Tracking
Source: cverecord
https://github.com/gpac/gpac/issues/3516
Product
Source: cverecord
https://github.com/gpac/gpac/

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-125CWE-119

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