CVE-2021-33727 Information disclosure in SINEC NMS

What is CVE-2021-33727?

CVE-2021-33727 is a medium-severity vulnerability in Siemens SINEC NMS, published on 12 Oct 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability has been identified in SINEC NMS (All versions < V1.0 SP2 Update 1). An authenticated attacker could download the user profile of any user. With this, the attacker could leak confidential information of any user in the affected system.

Weakness: CWE-200

Which versions are affected by CVE-2021-33727?

It affects 1 product.

Products include Siemens Sinec Nms.

How do I fix CVE-2021-33727?

No fix has been published for CVE-2021-33727 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-33727 being exploited?

There is no known exploitation of CVE-2021-33727 in the wild and no public exploit code.

Other vulnerabilities in Siemens SINEC NMS

• CVE-2024-41940 Command injection in SINEC NMS Critical 9.4
• CVE-2025-40736 Missing authorization in SINEC NMS Critical 9.3
• CVE-2021-33724 Path traversal in SINEC NMS Critical 9.1
• CVE-2021-33725 Path traversal in SINEC NMS Critical 9.1
• CVE-2024-23810 SQL injection in SINEC NMS High 8.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-5cj8-hj5v-h9wr.