CVE-2021-33732Network attack vector

Authenticated SQL injection via crafted web requests

Published Oct 12, 2021 · Updated Aug 3, 2024

SQL injection in Siemens SINEC NMS before V1.0 SP2 Update 1 allows remote authenticated users to execute commands in the local database via crafted webserver requests. The webserver fails to properly neutralize SQL metacharacters in request data, allowing attacker-controlled statements to reach database command processing. The gate is privileged authenticated access; impact is arbitrary database command execution, with potential data and service integrity consequences.

CVSS severity7.2
High
EPSS probability27.68%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in Siemens SINEC NMS before V1.0 SP2 Update 1 allows remote authenticated users to execute commands in the local database via crafted webserver requests. The webserver fails to properly neutralize SQL metacharacters in request data, allowing attacker-controlled statements to reach database command processing. The gate is privileged authenticated access; impact is arbitrary database command execution, with potential data and service integrity consequences.

The record

CVE
CVE-2021-33732
Published
Oct 12, 2021
Updated
Aug 3, 2024
Vendor
Siemens
Product
SINEC NMS
Classifications
CWE-89, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 12, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All versions < V1.0 SP2 Update 1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Siemens · SINEC NMSversion=All versions < V1.0 SP2 Update 1

Published CVSS scores

7.2NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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