CVE-2025-40736

criticalpriority · track · 0OT risk · elevatedEPSS 0.005 · 39 %ileDEEUNLRUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.46% (39th) EPSS
CVSS 9.8 · critical
Is it mine?
6 products
Check your exposure
Who says so?
7 sources
cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

A vulnerability has been identified in SINEC NMS (All versions < V4.0). The affected application exposes an endpoint that allows an unauthorized modification of administrative credentials. This could allow an unauthenticated attacker to reset the superadmin password and gain full control of the application (ZDI-CAN-26569).

01

remediations

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

A vendor fix is available.

02

cvss

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

9.8
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.1–9.8

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · productcert@siemens.com DEexploitability 3.9 · impact 5.9
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · Siemens ProductCERT DE
v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · CISA US
v4.09.3criticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · productcert@siemens.com DE
v4.09.3criticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:Nsecondary · ENISA EU
v4.08.1highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-306USCWE-306USCWE-306USCWE-306USCWE-306US
05

affected products (6)

Products and version ranges known to be affected.

06

advisories (3)

Vendor and ecosystem advisories describing this.

  • NCSC-2025-0211Kwetsbaarheden verholpen in Siemens productenNL2025-07-08csaf · ncsc_nlNL

    Siemens heeft kwetsbaarheden verholpen in diverse producten als SIMATIC, SINEC, SIPROTEC, Solid Edge en TIA,

  • SSA-078892SSA-078892: Multiple Vulnerabilities in SINEC NMS Before V4.02025-07-08csaf · siemens_psirtDE

    Siemens SINEC NMS before V4.0 is affected by multiple vulnerabilities which could allow an attacker to elevate privilege and exceute arbitrary code. Siemens has released a new version for SINEC NMS and recommends to update to the latest version. Siemens is preparing further fix versions and recommends countermeasures for products where fixes are not, or not yet available.

  • ICSA-25-191-01Siemens SINEC NMS2025-07-08icsa · cisa_csaf_otUS

    Siemens SINEC NMS before V4.0 is affected by multiple vulnerabilities which could allow an attacker to elevate privilege and exceute arbitrary code. Siemens has released a new version for SINEC NMS and recommends to update to the latest version. Siemens is preparing further fix versions and recommends countermeasures for products where fixes are not, or not yet available.

07

also known as (4)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducisa_csaf_otnvdsiemens_psirtncsc_nlNVDCVE.orgMITRE
published 2025-07-08modified 2026-06-17
09

references (5)

External citations — patches, advisories, analysis.

scry

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