GPAC version 0.7.1 and earlier has a buffer overflow vulnerability in the cat_multiple_files function in applications/mp4box/fileimport.c w…

published 2019-02-06 7y ago modified 2026-06-17 4mo ago also EUVD-2018-13305

cvss: 7.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.5%; EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits: 0; none known

GPAC version 0.7.1 and earlier has a buffer overflow vulnerability in the cat_multiple_files function in applications/mp4box/fileimport.c when MP4Box is used for a local directory containing crafted filenames.

Patch / fix

distros 2 links 1

debian ubuntu

gpac Debian 11 0.5.2-426-gc5ad4e4+dfsg5-4.1

debian advisories DEBIAN-CVE-2018-20762

gpac Ubuntu 16.04 LTS 0.5.2-426-gc5ad4e4+dfsg5-1ubuntu0.1
gpac Ubuntu 18.04 LTS 0.5.2-426-gc5ad4e4+dfsg5-3ubuntu0.1
gpac Ubuntu Pro 14.04 LTS 0.5.0+svn4288~dfsg1-4ubuntu1+esm1

ubuntu advisories UBUNTU-CVE-2018-20762

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

github.com/gpac/gpac@35ab447 commit

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Exploit prediction

1.48% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

github.com https://github.com/gpac/gpac/issues/1187 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	7.8	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

github.com /gpac/gpac/commit/35ab4475a7df9b2a4bcab235e379c0c3ec543658
patch, third-party-advisory
github.com /gpac/gpac/issues/1187
exploit, third-party-advisory
usn.ubuntu.com /3926-1/
vendor-advisory, third-party-advisory
lists.debian.org /debian-lts-announce/2019/02/msg00040.html
mailing-list, third-party-advisory

Sources

CVE List CVE-2018-20762
NVD CVE-2018-20762

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.