CVE-2025-40769 Cross-site scripting in SINEC Traffic Analyzer
An attacker can execute unauthorized scripts via unsafe Content Security Policy settings, potentially leading to cross-site scripting attacks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-40769?
CVE-2025-40769 is a high-severity cross-site scripting vulnerability in Siemens SINEC Traffic Analyzer, published on 12 Aug 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability has been identified in SINEC Traffic Analyzer (6GK8822-1BG01-0BA0) (All versions < V3.0). The affected application uses a Content Security Policy that allows unsafe script execution methods. This could allow an attacker to execute unauthorized scripts, potentially leading to cross-site scripting attacks.
Weakness: CWE-1164
Which versions are affected by CVE-2025-40769?
How do I fix CVE-2025-40769?
No fix has been published for CVE-2025-40769 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-40769 being exploited?
There is no known exploitation of CVE-2025-40769 in the wild and no public exploit code.
Sources
Also known as GHSA-w6vq-734q-7g6h.