CVE-2025-11155 WEAK ENCODING FOR PASSWORD IN DEVICE SERVER CONFIGURATION
Attackers can intercept base64-encoded credentials in HTTP headers to gain unauthorized access to the SATO device web server.
- 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-2025-11155?
CVE-2025-11155 is a medium-severity vulnerability in SATO S86-ex 203dpi, published on 29 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
The credentials required to access the device's web server are sent in base64 within the HTTP headers. Since base64 is not considered a strong cipher, an attacker could intercept the web request handling the login and obtain the credentials.
Weakness: CWE-261
Which versions are affected by CVE-2025-11155?
How do I fix CVE-2025-11155?
No fix has been published for CVE-2025-11155 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-11155 being exploited?
There is no known exploitation of CVE-2025-11155 in the wild and no public exploit code.
Sources
Also known as GHSA-jww6-hm47-4x25.