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Vulnerability record · CVE-2020-11558 · published 5 April 2020

CVE-2020-11558: Gpac use after free vulnerability

Gpac · Gpac

An issue was discovered in libgpac.a in GPAC 0.8.0, as demonstrated by MP4Box. audio_sample_entry_Read in isomedia/box_code_base.c does not properly decide when to make gf_isom_box_del calls. This leads to various use-after-free outcomes involving mdia_Read, gf_isom_delete_movie, and gf_isom_parse_movie_boxes.

9.8 CVSS 3.1 Critical EPSS 1.5% · top 26.1% CWE-416 · Use after free
9.8CVSS 3.1 base score, v2 7.5
1.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

An issue was discovered in libgpac.a in GPAC 0.8.0, as demonstrated by MP4Box. audio_sample_entry_Read in isomedia/box_code_base.c does not properly decide when to make gf_isom_box_del calls. This leads to various use-after-free outcomes involving mdia_Read, gf_isom_delete_movie, and gf_isom_parse_movie_boxes.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/gpac/gpac/commit/6063b1a011c3f80cee25daade18154e15e4c058c PatchThird Party Advisory
https://github.com/gpac/gpac/issues/1440 ExploitThird Party Advisory
https://github.com/gpac/gpac/commit/6063b1a011c3f80cee25daade18154e15e4c058c PatchThird Party Advisory
https://github.com/gpac/gpac/issues/1440 ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2023-46427Gpac null pointer dereference vulnerabilityAn issue was discovered in gpac version 2.3-DEV-rev588-g7edc40fee-master, allows remote attackers to execute arbitrary code, cause a denial of servic…EPSS 1.1%9.8CVE-2024-0321Gpac stack-based buffer overflow vulnerabilityStack-based Buffer Overflow in GitHub repository gpac/gpac prior to 2.3-DEV.EPSS 1.0%9.8CVE-2023-46932Gpac out-of-bounds write vulnerabilityHeap Buffer Overflow vulnerability in GPAC version 2.3-DEV-rev617-g671976fcc-master, allows attackers to execute arbitrary code and cause a denial of…EPSS 1.1%9.8CVE-2023-2840Gpac null pointer dereference vulnerabilityNULL Pointer Dereference in GitHub repository gpac/gpac prior to 2.2.2.EPSS 0.65%9.8CVE-2022-36190Gpac use after free vulnerabilityGPAC mp4box 2.1-DEV-revUNKNOWN-master has a use-after-free vulnerability in function gf_isom_dovi_config_get. This vulnerability was fixed in commit …EPSS 1.1%9.8CVE-2022-1795Gpac use after free vulnerabilityUse After Free in GitHub repository gpac/gpac prior to v2.1.0-DEV.EPSS 1.0%9.8CVE-2021-28300Gpac null pointer dereference vulnerabilityNULL Pointer Dereference in the "isomedia/track.c" module's "MergeTrack()" function of GPAC v0.5.2 allows attackers to execute arbitrary code or caus…EPSS 2.1%9.8CVE-2018-13005Debian linux out-of-bounds read vulnerabilityAn issue was discovered in MP4Box in GPAC 0.7.1. The function urn_Read in isomedia/box_code_base.c has a heap-based buffer over-read.EPSS 2.5%

Source: NIST National Vulnerability Database (record CVE-2020-11558), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.