CVE-2026-25608 Lack of traffic encryption in STER
STER transmits data over unencrypted TCP, allowing attackers to intercept sensitive information like passwords and tokens via Man-In-The-Middle attacks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-25608?
CVE-2026-25608 is a low-severity vulnerability in Centralny Instytut Ochrony Pracy - Państwowy Instytut Badawczy STER, published on 22 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
STER uses unencrypted TCP traffic to transmit data over the network. It allows an attacker to conduct a Man-In-The-Middle attack and obtain sensitive data such as passwords, personal data, or authentication tokens.
This issue was fixed in version 9.5.
Weakness: CWE-319
Which versions are affected by CVE-2026-25608?
How do I fix CVE-2026-25608?
No fix has been published for CVE-2026-25608 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-25608 being exploited?
There is no known exploitation of CVE-2026-25608 in the wild and no public exploit code.
Sources
Also known as GHSA-3mwj-g532-hjvp.