CVE-2025-40805 Auth bypass in Industrial Edge Cloud Device (IECD)
Unauthenticated attackers can bypass authentication on specific API endpoints to impersonate legitimate users if they know the user identity.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-40805?
CVE-2025-40805 is a critical authentication bypass vulnerability in Siemens Industrial Edge Cloud Device (IECD), published on 13 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Affected devices do not properly enforce user authentication on specific API endpoints. This could facilitate an unauthenticated remote attacker to circumvent authentication and impersonate a legitimate user. Successful exploitation requires that the attacker has learned the identity of a legitimate user.
Weakness: CWE-639
Which versions are affected by CVE-2025-40805?
How do I fix CVE-2025-40805?
No fix has been published for CVE-2025-40805 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2025-40805 being exploited?
There is no known exploitation of CVE-2025-40805 in the wild and no public exploit code.
Sources
Also known as GHSA-8gqp-3rhh-936h.