CVE-2026-57262 Hardcoded credentials in LOGO! Soft Comfort
A local attacker can extract a hardcoded AES key to decrypt project files or bypass password protection in Siemens LOGO! Soft Comfort.
- 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-2026-57262?
CVE-2026-57262 is a high-severity vulnerability in Siemens LOGO! Soft Comfort, published on 11 Aug 2026. 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 LOGO! Soft Comfort (All versions < V9). Affected products use a static, hardcoded AES master key to encrypt project files. This could allow a local attacker to extract the master key from the application files or memory and use it to decrypt project files or remove project passwords entirely without knowing the actual user-defined password.
Weakness: CWE-321
Which versions are affected by CVE-2026-57262?
How do I fix CVE-2026-57262?
No fix has been published for CVE-2026-57262 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-57262 being exploited?
There is no known exploitation of CVE-2026-57262 in the wild and no public exploit code.
Sources
Also known as GHSA-f96f-m7rh-gphp.