CVE-2021-33736

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-10-12 · updated 2026-06-17
Weakness: CWE-89

Description

A vulnerability has been identified in SINEC NMS (All versions < V1.0 SP2 Update 1). A privileged authenticated attacker could execute arbitrary commands in the local database by sending crafted requests to the webserver of the affected application.

Affected products

Siemens SINEC NMS: before 1.0; 1.0, 1.0-sp1, 1.0-sp2 — fixed in 1.0

How to fix

Upgrade to a fixed version: Siemens SINEC NMS 1.0. Check the vendor advisory for mitigations.

References

https://cert-portal.siemens.com/productcert/pdf/ssa-163251.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-163251.pdf

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