CVE-2020-19721 json
A heap buffer overflow vulnerability in Ap4TrunAtom.cpp of Bento 1.5.1-628 may lead to an out-of-bounds write while running mp42aac, leadin…
published 2021-07-13 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-11619
- cvss
- 6.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 67%
- public exploits
- 0
- none known
Summary
A heap buffer overflow vulnerability in Ap4TrunAtom.cpp of Bento 1.5.1-628 may lead to an out-of-bounds write while running mp42aac, leading to system crashes and a denial of service (DOS).
Patch / fix
- vlc Alpine 3.11 3.0.9.2-r0
alpine advisories ALPINE-CVE-2020-19721
Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
Exploit prediction
1.17% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/axiomatic-systems/Bento4/issues/415 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/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-787 Out-of-bounds Write
References
-
github.com
/axiomatic-systems/Bento4/issues/415
exploit, third-party-advisory
-
cwe.mitre.org
/data/definitions/122.html
third-party-advisory
Sources
- CVE List CVE-2020-19721
- NVD CVE-2020-19721
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.