CVE-2020-21548
HIGH8.8EPSS 0.38%Published: 9/17/2021Modified: 4/28/2026
Description
Libsixel 1.8.3 contains a heap-based buffer overflow in the sixel_encode_highcolor function in tosixel.c.
Affected packages (1)
- Debian/libsixelfrom 0, < 1.8.6-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |