CVE-2025-28172 Auth bypass in n/a
Attackers can bypass authentication limits to brute force passwords and gain unauthorized access to Grandstream UCM6510 accounts.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-28172?
CVE-2025-28172 is a medium-severity authentication bypass vulnerability in n/a, published on 29 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Grandstream Networks UCM6510 v1.0.20.52 and before is vulnerable to Improper Restriction of Excessive Authentication Attempts. An attacker can perform an arbitrary number of authentication attempts using different passwords and eventually gain access to the targeted account using a brute force attack.
Weakness: CWE-307
Which versions are affected by CVE-2025-28172?
It affects 1 product.
Products include Grandstream Ucm6510 Firmware.
How do I fix CVE-2025-28172?
No fix has been published for CVE-2025-28172 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2025-28172 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-28172 exists.
Other vulnerabilities in n/a
Sources
Also known as GHSA-m4wf-gf4j-873f.