CVE-2021-37200 in the critical feed json
A vulnerability has been identified in SINEC NMS (All versions < V1.0 SP1).
published 2021-09-14 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-23774
- cvss
- 7.7
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 37.4%
- EPSS 37.4% chance of exploitation in 30 days, percentile 98%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- siemens sinec_network_management_system 1.0
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
cisa ICSA-21-257-14 updated cvss 7.7
Siemens SINEC NMS
-
Siemens SINEC NMS <V1.0_SP1affected: fixed in V1.0, workaround support.industry.siemens.com
Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf
Exploit prediction
37.38% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:P/I:N/A:N |
Affected products
- Siemens SINEC NMS
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
cert-portal.siemens.com
/productcert/pdf/ssa-330339.pdf
patch, vendor-advisory
Sources
- CVE List CVE-2021-37200
- NVD CVE-2021-37200
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.