CVE-2021-4043 json
NULL Pointer Dereference in gpac/gpac
published 2022-02-04 4 y ago modified 2026-11-03 5 d ago also EUVD-2021-33941
- cvss
- 5.8
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 4.6%
- EPSS 4.6% chance of exploitation in 30 days, percentile 91%
- public exploits
- 0
- none known
Summary
NULL Pointer Dereference in GitHub repository gpac/gpac prior to 1.1.0.
Patch / fix
- gpac gpac/gpac 1.1.0
- gpac gpac 1.1.0
- gpac Debian 11 1.0.1+dfsg1-4+deb11u2
debian advisories DEBIAN-CVE-2021-4043
- github.com/gpac/gpac@64a2e1b commit
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
4.61% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- huntr.dev https://huntr.dev/bounties/d7a534cb-df7a-48ba-8ce3-46b1551a9c47 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 5.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L |
| 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 |
Affected products
- gpac gpac/gpac
- gpac gpac
- debian debian_linux
Classification
- Weakness
-
- CWE-476 NULL Pointer Dereference
References
-
github.com
/gpac/gpac/commit/64a2e1b799352ac7d7aad1989bc06e7b0f2b01db
patch, third-party-advisory
-
huntr.dev
/bounties/d7a534cb-df7a-48ba-8ce3-46b1551a9c47
exploit, issue-tracking, third-party-advisory
-
debian.org
/security/2023/dsa-5411
vendor-advisory, mailing-list, third-party-advisory
Sources
- CVE List CVE-2021-4043
- NVD CVE-2021-4043
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.