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Case File

CVE-2020-21548

HIGH · CVSS 8.8 EPSS 1.07% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-09-17 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2020-21548
Severity
HIGH
CVSS
8.8
EPSS
1.07%

Original NVD Description

Libsixel 1.8.3 contains a heap-based buffer overflow in the sixel_encode_highcolor function in tosixel.c.