CVE-2018-25241 VPN Browser+ 1.1.0.0 Denial of Service
Unauthenticated attackers can crash VPN Browser+ by submitting oversized input to the search bar, causing a denial of service.
- 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-2018-25241?
CVE-2018-25241 is a high-severity denial of service vulnerability in VPNBrowser VPN Browser+, published on 4 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
VPN Browser+ 1.1.0.0 contains a denial of service vulnerability that allows unauthenticated attackers to crash the application by submitting oversized input through the search functionality. Attackers can paste a large buffer of characters into the search bar to trigger an unhandled exception that terminates the application.
Weakness: CWE-306
Which versions are affected by CVE-2018-25241?
How do I fix CVE-2018-25241?
No fix has been published for CVE-2018-25241 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-2018-25241 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-25241 exists.
Sources
Also known as GHSA-2x95-qpv9-c883.