CVE-2025-41677 Resource Exhaustion via POST Requests to send-mail Action
A high-privileged remote attacker can cause denial of service by exhausting system resources via crafted POST requests to the send-mail action.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-41677?
CVE-2025-41677 is a medium-severity denial of service vulnerability in Helmholz REX 100, published on 21 Jul 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A high privileged remote attacker can exhaust critical system resources by sending specifically crafted POST requests to the send-mail action in fast succession.
Weakness: CWE-400
Which versions are affected by CVE-2025-41677?
It affects 1 product.
Products include Mbconnectline Mbnet.mini Firmware.
How do I fix CVE-2025-41677?
No fix has been published for CVE-2025-41677 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-41677 being exploited?
There is no known exploitation of CVE-2025-41677 in the wild and no public exploit code.
Other vulnerabilities in Helmholz REX 100
- CVE-2025-41673 Remote Command Injection in send_sms Action Due to Improper Input Neutralization
- CVE-2025-41674 Remote Command Injection in diagnostic Action Due to Improper Input Neutralization
- CVE-2025-41675 Remote Command Injection via GET in Cloud Server Communication Script Due to Improper Input Neutralization
- CVE-2025-41678 SQL Injection via POST Requests Allowing Configuration Database Manipulation
- CVE-2025-41679 Unauthenticated Buffer Overflow in Conftool Service Leading to Denial of Service
Sources
Also known as GHSA-fvh4-7pmw-84hm.