CVE-2019-25588 BulletProof FTP Server 2019.0.0.50 Denial of Service via DNS Address

Medium 6.9 Published Updated

Local attackers can crash BulletProof FTP Server by supplying an excessively long string to the DNS Address field in Firewall settings.

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-2019-25588?

CVE-2019-25588 is a medium-severity denial of service vulnerability in Bpftpserver BulletProof FTP Server, published on 22 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

BulletProof FTP Server 2019.0.0.50 contains a denial of service vulnerability in the DNS Address field that allows local attackers to crash the application by supplying an excessively long string. Attackers can enable the DNS Address option in the Firewall settings and paste a buffer of 700 bytes to trigger a crash when the Test function is invoked.

Weakness: CWE-1282

Which versions are affected by CVE-2019-25588?

It affects 1 product.

Products include Bpftpserver Bulletproof Ftp Server.

How do I fix CVE-2019-25588?

No fix has been published for CVE-2019-25588 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-2019-25588 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25588 exists.

Sources

Also known as GHSA-h3gg-hh2w-3wmp.

Is CVE-2019-25588 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free