CVE-2021-41715 json
libsixel 1.10.0 is vulnerable to Use after free in libsixel/src/dither.c:379.
published 2022-04-08 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-28727
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 63%
- public exploits
- 0
- none known
Summary
libsixel 1.10.0 is vulnerable to Use after free in libsixel/src/dither.c:379.
Patch / fix
- libsixel Debian 14, Debian 13, Debian 12 1.10.3-1
debian advisories DEBIAN-CVE-2021-41715
Exploit prediction
1.02% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/libsixel/libsixel/issues/27 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-416 Use After Free
References
-
github.com
/libsixel/libsixel/issues/27
exploit, issue-tracking, third-party-advisory
Sources
- CVE List CVE-2021-41715
- NVD CVE-2021-41715
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.