CVE-2025-1235 WAGO: Switches affected by year 2k38 problem

Medium 4.3 Published Updated

A low-privileged attacker can trigger a 32-bit integer overflow by setting the date to 2038, causing the switch time to reset to 1970.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-1235?

CVE-2025-1235 is a medium-severity vulnerability in WAGO Fully Managed Switches 0852-0303, published on 2 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A low privileged attacker can set the date of the devices to the 19th of January 2038 an therefore exceed the 32-Bit time limit. This causes the date of the switch to be set back to January 1st, 1970.

Weakness: CWE-190

Which versions are affected by CVE-2025-1235?

How do I fix CVE-2025-1235?

No fix has been published for CVE-2025-1235 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-1235 being exploited?

There is no known exploitation of CVE-2025-1235 in the wild and no public exploit code.

Sources

Also known as GHSA-fh88-hcg6-h76m.

Is CVE-2025-1235 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free