CVE-2025-57784 Tomahawk authentication timing attack due to usage of 'strcmp'
A local attacker can exploit a timing side-channel in authentication to bypass security checks and access the management client.
- 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-2025-57784?
CVE-2025-57784 is a medium-severity vulnerability in Hiawatha Web server, published on 26 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Tomahawk auth timing attack due to usage of `strcmp` has been identified in Hiawatha webserver version 11.7 which allows a local attacker to access the management client.
Which versions are affected by CVE-2025-57784?
It affects 1 product.
Products include Hiawatha-Webserver Hiawatha.
How do I fix CVE-2025-57784?
No fix has been published for CVE-2025-57784 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-57784 being exploited?
There is no known exploitation of CVE-2025-57784 in the wild and no public exploit code.
Other vulnerabilities in Hiawatha Web server
Sources
Also known as GHSA-h568-qr59-9xpj.