What is CVE-2021-33721?

CVE-2021-33721 is a high-severity vulnerability in Siemens Sinec Network Management System, classified under OS Command Injection. CVSS score: 7.2/10. Published 2021-08-10.

How severe is CVE-2021-33721?

High severity. CVSS v3 base score is 7.2 out of 10.

RCE in Siemens Sinec Network Management System

CVE-2021-33721

A vulnerability has been identified in SINEC NMS (All versions < V1.0 SP2). The affected application incorrectly neutralizes special elements when creating batch operations which could lead to command injection. An authenticated remote attacker with administrative privileges could exploit this vulnerability to execute arbitrary code on the system with system privileges.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.027 (85.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Siemens Sinec_network_management_system — versions 1.0
Siemens Sinec Nms — versions All versions < V1.0 SP2

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

productcert@siemens.com (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-33721?: CVE-2021-33721 is a high-severity vulnerability in Siemens Sinec Network Management System, classified under OS Command Injection. CVSS score: 7.2/10. Published 2021-08-10.
How severe is CVE-2021-33721?: High severity. CVSS v3 base score is 7.2 out of 10.