There is a integer overflow in media_tools/av_parsers.c in the gf_avc_read_pps_bs_internal in GPAC from 0.5.2 to 1.0.1.

published 2021-04-19 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-16966

cvss: 5.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.1%; EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits: 0; none known

There is a integer overflow in media_tools/av_parsers.c in the gf_avc_read_pps_bs_internal in GPAC from 0.5.2 to 1.0.1. pps_id may be a negative number, so it will not return. However, avc->pps only has 255 unit, so there is an overflow, which results a crash.

Patch / fix

distros 1 links 1

gpac Debian 11 1.0.1+dfsg1-4

debian advisories DEBIAN-CVE-2021-30022

github.com/gpac/gpac@51cdb67 commit

Exploit prediction

1.07% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/gpac/gpac/issues/1720 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness

CWE-190 Integer Overflow or Wraparound

References

github.com /gpac/gpac/commit/51cdb67ff7c5f1242ac58c5aa603ceaf1793b788
patch, third-party-advisory
github.com /gpac/gpac/issues/1720
exploit, third-party-advisory
github.com /gpac/gpac/blob/v0.5.2/src/media_tools/av_parsers.c#L2344
product

Sources

CVE List CVE-2021-30022
NVD CVE-2021-30022

Fencer Vulns 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.

Summary