AUGUST 4, 2026
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Case File

CVE-2021-45099

HIGH · CVSS 8.8 EPSS 1.29% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-12-16 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.8. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

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

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

CVE
CVE-2021-45099
Severity
HIGH
CVSS
8.8
EPSS
1.29%

Original NVD Description

The addon.stdin service in addon-ssh (aka Home Assistant Community Add-on: SSH & Web Terminal) before 10.0.0 has an attack surface that requires social engineering. NOTE: the vendor does not agree that this is a vulnerability; however, addon.stdin was removed as a defense-in-depth measure against complex social engineering situations