CVE-2020-11556

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-04-09 · updated 2026-06-17
Weakness: CWE-79

Description

An issue was discovered in Castle Rock SNMPc Online 12.10.10 before 2020-01-28. There are multiple persistent (stored) and reflected XSS vulnerabilities.

Affected products

Castlerock Snmpc Online: from 12.10.10 before 2020-01-28 — fixed in 2020-01-28

How to fix

Upgrade to a fixed version: Castlerock Snmpc Online 2020-01-28. Check the vendor advisory for mitigations.

References

https://medium.com/tsscyber/noc-noc-whos-there-your-nms-is-pwned-1826174e0dee
https://medium.com/tsscyber/noc-noc-whos-there-your-nms-is-pwned-1826174e0dee

Get alerted when CVE-2020-11556 or the next vulnerability affects your stack