CVE-2021-37200

mediumpriority · track · 44EPSS 0.374 · 99 %ileDEEUUS

grimoire priorityP1 · Urgent

Exploitable?

—

no known exploitation

Likely / severe?

37.4% (99th) EPSS

CVSS 4 · medium

Is it mine?

6 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

A vulnerability has been identified in SINEC NMS (All versions < V1.0 SP1). An attacker with access to the webserver of an affected system could download arbitrary files from the underlying filesystem by sending a specially crafted HTTP request.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedSINEC NMSsiemens_psirt
Update to V1.0 SP1 or later version
https://support.industry.siemens.com/cs/ww/en/view/109776939/
FixedSINEC NMScisa_csaf_ot
Update to V1.0 SP1 or later version
https://support.industry.siemens.com/cs/ww/en/view/109776939/
WorkaroundSINEC NMSsiemens_psirt
Do not access links from untrusted sources
WorkaroundSINEC NMScisa_csaf_ot
Do not access links from untrusted sources

cvss

Technical severity, 0–10. One row per scoring source.

7.7

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4–7.7

v2.04mediumAV:N/AC:L/Au:S/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8 · impact 2.9

v3.17.7highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 3.1 · impact 4

v3.17.7highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:P/RL:O/RC:Csecondary · CISA US

v3.17.7highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE

v3.17.7highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:Hsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-22USCWE-22USCWE-22US

affected products (6)

Products and version ranges known to be affected.

SINEC NMSall versionscisa_csaf_otUS
Siemens SINEC NMS< V1.0_SP1cisa_csaf_otUS
Siemens SINEC NMSAll versions → V1.0 SP1enisa_euvdEU
siemens sinec network management system< 1.0nvdUScpe:2.3:a:siemens:sinec_network_management_system:*:*:*:*:*:*:*:*
siemens sinec network management system= 1.0nvdUScpe:2.3:a:siemens:sinec_network_management_system:*:*:*:*:*:*:*:*
Siemens SINEC NMS< V1.0 SP1siemens_psirtDE

advisories (2)

Vendor and ecosystem advisories describing this.

SSA-330339SSA-330339: Web Vulnerabilities in SINEC NMS2021-09-14csaf · siemens_psirtDE
A recent update for SINEC NMS fixed multiple vulnerabilities. The most severe of these vulnerabilities could allow an attacker to manipulate the SINEC NMS configuration by tricking an admin to click on a malicious link. Siemens has released an update for SINEC NMS and recommends to update to the latest version.
ICSA-21-257-14Siemens SINEC NMS2021-09-14icsa · cisa_csaf_otUS
A recent update for SINEC NMS fixed multiple vulnerabilities. The most severe of these vulnerabilities could allow an attacker to manipulate the SINEC NMS configuration by tricking an admin to click on a malicious link. Siemens has released an update for SINEC NMS and recommends to update to the latest version.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot nvd siemens_psirt NVD CVE.org MITRE

published 2021-09-14modified 2026-06-17

references (6)

External citations — patches, advisories, analysis.

scry

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