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Case File

CVE-2016-6556

HIGH · CVSS 7.1 EPSS 0.80% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-09-24 · 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-2016-6556
Severity
HIGH
CVSS
7.1
EPSS
0.80%

Original Filing — NVD Description

OpenNMS version 18.0.1 and prior are vulnerable to a stored XSS issue due to insufficient filtering of SNMP agent supplied data. By creating a malicious SNMP 'sysName' or 'sysContact' response, an attacker can store an XSS payload which will trigger when a user of the web UI views the data. This issue was fixed in version 18.0.2, released on September 20, 2016.