CVE-2021-33723 json
A vulnerability has been identified in SINEC NMS (All versions < V1.0 SP2 Update 1).
published 2021-10-12 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-20400
- cvss
- 6.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 49%
- public exploits
- 0
- none known
Summary
A vulnerability has been identified in SINEC NMS (All versions < V1.0 SP2 Update 1). An authenticated attacker could change the user profile of any user without proper authorization. With this, the attacker could change the password of any user in the affected system.
Patch / fix
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
cisa ICSA-21-287-05 updated cvss 8.8
Siemens SINEC NMS
-
Siemens SINEC NMS <V1.0_SP2_Update_1affected: fixed in V1.0, mitigation 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
0.62% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:P/A:N |
Affected products
- Siemens SINEC NMS
Classification
- Weakness
-
- CWE-285 Improper Authorization
References
-
cert-portal.siemens.com
/productcert/pdf/ssa-163251.pdf
patch, vendor-advisory
Sources
- CVE List CVE-2021-33723
- NVD CVE-2021-33723
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