CVE-2025-40594 Privilege escalation in SINAMICS G220 V6.4
An unauthorized attacker can escalate privileges and perform factory resets on Siemens SINAMICS drives due to improper privilege management and leaked session privileges.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-40594?
CVE-2025-40594 is a medium-severity vulnerability in Siemens SINAMICS G220 V6.4, published on 9 Sep 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
A vulnerability has been identified in SINAMICS G220 V6.4 (All versions < V6.4 HF2), SINAMICS S200 V6.4 (All versions < V6.4 HF7), SINAMICS S210 V6.4 (All versions < V6.4 HF2). The affected devices allow a factory reset to be executed without the required privileges due to improper privilege management as well as manipulation of configuration data because of leaked privileges of previous sessions. This could allow an unauthorized attacker to escalate their privileges.
Weakness: CWE-269
Which versions are affected by CVE-2025-40594?
It affects 3 products.
Products include Siemens Sinamics G220 Firmware, Siemens Sinamics S200 Firmware, Siemens Sinamics S210 Firmware.
How do I fix CVE-2025-40594?
No fix has been published for CVE-2025-40594 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-40594 being exploited?
There is no known exploitation of CVE-2025-40594 in the wild and no public exploit code.
Sources
Also known as GHSA-jg6x-p73x-m4hc.