CVE-2025-40769

Local script execution via unsafe Content Security Policy

Published Aug 12, 2025 · Updated Aug 12, 2025

Cross-site scripting in Siemens SINEC Traffic Analyzer before 3.0 allows local users to execute unauthorized scripts through its web interface. An overly permissive Content Security Policy permits unsafe script-execution methods instead of constraining untrusted script content. Exploitation requires local access but no privileges or user interaction; Siemens has not disclosed the exact unsafe policy directive or injection path.

CVSS severity7.5
High
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Siemens SINEC Traffic Analyzer before 3.0 allows local users to execute unauthorized scripts through its web interface. An overly permissive Content Security Policy permits unsafe script-execution methods instead of constraining untrusted script content. Exploitation requires local access but no privileges or user interaction; Siemens has not disclosed the exact unsafe policy directive or injection path.

The record

CVE
CVE-2025-40769
Published
Aug 12, 2025
Updated
Aug 12, 2025
Vendor
Siemens
Product
SINEC Traffic Analyzer
Classifications
CWE-1164, T1059.007
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 12, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 12, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <V3.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Siemens · SINEC Traffic Analyzerversion=0 <V3.0

Published CVSS scores

7.4Siemens ProductCERTCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5Siemens ProductCERTCVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1164Irrelevant Code
T1059.007Command and Scripting Interpreter JavaScript

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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