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CVE-2021-37201

27
FAUCET Score

CVE-2021-37201 is a Cross-Site Request Forgery (CSRF) vulnerability affecting all versions of Siemens SINEC NMS prior to V1.0 SP1. This high-severity flaw (CVSS 8.8) allows an unauthenticated attacker to manipulate the SINEC NMS configuration if an administrative user is tricked into clicking a malicious link. While no active exploitation or public exploit code is currently known, and community discussion is minimal, the potential for high impact on confidentiality, integrity, and availability necessitates attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.0CPE matchmatch criteria
cpe:2.3:a:siemens:sinec_network_management_system:*:*:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:siemens:sinec_network_management_system:1.0:-:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.43%
Probability of exploitation in next 30 days
EPSS Percentile
35.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0043 is in the 38th percentile among its peer group of 14,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cert-portal.siemens.com / productcert/pdf/ssa-330339.pdf
PatchVendor Advisory