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Case File

CVE-2016-8858

HIGH · CVSS 7.5 EPSS 29.46% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2016-12-09 · Last synced 2026-08-04

Field Assessment

AI analysis pending.

Exhibit — 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-2016-8858
Severity
HIGH
CVSS
7.5
EPSS
29.46%

Original Filing — NVD Description

The kex_input_kexinit function in kex.c in OpenSSH 6.x and 7.x through 7.3 allows remote attackers to cause a denial of service (memory consumption) by sending many duplicate KEXINIT requests. NOTE: a third party reports that "OpenSSH upstream does not consider this as a security issue."