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Case File

CVE-2016-6603

CRITICAL · CVSS 9.8 EPSS 87.04% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2017-01-23 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Public exploit code or proof-of-concept references have been detected in its references. Its EPSS score suggests a 87.0% probability of exploitation in the next 30 days. It may be remotely exploitable.

Public Exploit Signal

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

GitHub PoC Links

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

CVE
CVE-2016-6603
Severity
CRITICAL
CVSS
9.8
EPSS
87.04%

Original NVD Description

ZOHO WebNMS Framework 5.2 and 5.2 SP1 allows remote attackers to bypass authentication and impersonate arbitrary users via the UserName HTTP header.