CVE-2021-44957 json
Global buffer overflow vulnerability exist in ffjpeg through 01.01.2021.
published 2022-02-08 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-31755
- cvss
- 6.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 57%
- public exploits
- 0
- none known
Summary
Global buffer overflow vulnerability exist in ffjpeg through 01.01.2021. It is similar to CVE-2020-23705. Issue is in the jfif_encode function at ffjpeg/src/jfif.c (line 708) could cause a Denial of Service by using a crafted jpeg file.
Exploit prediction
0.82% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/rockcarry/ffjpeg/issues/44 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-120 Buffer Copy without Checking Size of Input
References
-
github.com
/rockcarry/ffjpeg/issues/44
exploit, issue-tracking, third-party-advisory
Sources
- CVE List CVE-2021-44957
- NVD CVE-2021-44957
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.