← Vulnerability feed

Vulnerability record · CVE-2021-33733 · published 12 October 2021

CVE-2021-33733: Siemens sinec nms sql injection vulnerability

Siemens · Sinec Nms

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.

7.2 CVSS 3.1 High EPSS 15% · top 3.3% CWE-89 · SQL injection
7.2CVSS 3.1 base score, v2 6.5
15%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

Track CVE-2021-33733 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.0CVE-2021-40438Apache HTTP Server mod_proxy SSRF via crafted URI pathA crafted request URI path can make mod_proxy forward the request to an origin server chosen by the remote user, an SSRF flaw in Apache HTTP Server 2…KEVEPSS 100%analysed7.5CVE-2023-44487HTTP/2 Rapid Reset stream cancellation denial of serviceThe HTTP/2 protocol permits a client to cancel many streams quickly, and the server's handling of those resets consumes disproportionate resources. T…KEVEPSS 100%analysed9.8CVE-2024-23810Siemens sinec nms sql injection vulnerabilityA vulnerability has been identified in SINEC NMS (All versions < V2.0 SP1). The affected application is vulnerable to SQL injection. This could allow…EPSS 0.65%9.8CVE-2021-39275Apache http server out-of-bounds write vulnerabilityap_escape_quotes() may write beyond the end of a buffer when given malicious input. No included modules pass untrusted data to these functions, but t…EPSS 39%9.4CVE-2024-41940Siemens sinec nms improper input validation vulnerabilityA vulnerability has been identified in SINEC NMS (All versions < V3.0). The affected application does not properly validate user input to a privilege…EPSS 0.56%9.3CVE-2025-40736Siemens sinec nms missing authentication for critical function vulnerabilityA vulnerability has been identified in SINEC NMS (All versions < V4.0). The affected application exposes an endpoint that allows an unauthorized modi…EPSS 0.40%9.1CVE-2021-33724Siemens sinec nms path traversal vulnerabilityA vulnerability has been identified in SINEC NMS (All versions < V1.0 SP2 Update 1). The affected system contains an Arbitrary File Deletion vulnerab…EPSS 1.0%9.1CVE-2021-33725Siemens sinec nms path traversal vulnerabilityA vulnerability has been identified in SINEC NMS (All versions < V1.0 SP2 Update 1). The affected system allows to delete arbitrary files or director…EPSS 1.0%

Source: NIST National Vulnerability Database (record CVE-2021-33733), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.