CVE-2026-3587 Hidden CLI Function Allows Root Access
Unauthenticated attackers can exploit a hidden CLI function to escape the restricted interface and gain root access to WAGO industrial switches.
- 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-2026-3587?
CVE-2026-3587 is a critical authentication bypass vulnerability in WAGO Industrial Managed Switch 852-1305, published on 23 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An unauthenticated remote attacker can exploit a hidden function in the CLI prompt to escape the restricted interface, leading to full compromise of the device.
Weakness: CWE-912
Which versions are affected by CVE-2026-3587?
How do I fix CVE-2026-3587?
No fix has been published for CVE-2026-3587 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-2026-3587 being exploited?
There is no known exploitation of CVE-2026-3587 in the wild and no public exploit code.
Sources
Also known as GHSA-4r7q-86hg-h98x.