CVE-2019-20630 json
An issue was discovered in libgpac.a in GPAC before 0.8.0, as demonstrated by MP4Box.
published 2020-03-24 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-11169
- cvss
- 5.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 60%
- public exploits
- 0
- none known
Summary
An issue was discovered in libgpac.a in GPAC before 0.8.0, as demonstrated by MP4Box. It contains a heap-based buffer over-read in BS_ReadByte (called from gf_bs_read_bit) in utils/bitstream.c that can cause a denial of service via a crafted MP4 file.
Patch / fix
- gpac gpac 0.8.0
- gpac Debian 11 1.0.1+dfsg1-2
debian advisories DEBIAN-CVE-2019-20630
- github.com/gpac/gpac@1ab4860 commit
Exploit prediction
0.93% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/gpac/gpac/issues/1268 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-125 Out-of-bounds Read
References
-
github.com
/gpac/gpac/commit/1ab4860609f2e7a35634930571e7d0531297e090
patch, third-party-advisory
-
github.com
/gpac/gpac/issues/1268
exploit, third-party-advisory
Sources
- CVE List CVE-2019-20630
- NVD CVE-2019-20630
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.