CVE-2019-25588: BulletProof FTP Server 2019.0.0.50 contains a denial of service vulnerability in the DNS Address field that al

Routine

MEDIUM 6.2DOWNGRADE

CVE-2019-25588 is a medium-severity flaw (CVSS 6.2) affecting bulletproof ftp server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.2 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 93%)
CISA exploited list	No
Weakness	CWE-1282
Published	2026-03-22
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: bpftpserver

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-22 01:16 UTCPublished CVE record published
2026-06-17 02:32 UTCUpdated Record last modified

bpftpserver bulletproof ftp server DOWNGRADE

Affected: 2019.0.0.50

Fixed in: no fixed release known

Safe to downgrade to: a release before 2019.0.0.50

1. Check installed version

apt-cache policy bulletproof-ftp-server || rpm -q bulletproof-ftp-server || bulletproof-ftp-server --version

2. No fixed release: DOWNGRADE to a release before 2019.0.0.50 (Debian / Ubuntu)

apt-cache madison bulletproof-ftp-server sudo apt install bulletproof-ftp-server=<VERSION_BEFORE_2019.0.0.50> sudo apt-mark hold bulletproof-ftp-server

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list bulletproof-ftp-server sudo dnf downgrade bulletproof-ftp-server-<VERSION_BEFORE_2019.0.0.50> sudo dnf versionlock add bulletproof-ftp-server

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-25588?

bulletproof ftp server: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-25588 being exploited?

CVE-2019-25588 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-25588 affect?

CVE-2019-25588 affects bulletproof ftp server. Severity is medium (CVSS 6.2). 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

How urgent is CVE-2019-25588?

Priority 28/100. Public exploit reference

Related CVEs

CVE-2019-25587 MEDIUM 6.2 DOWNGRADE BulletProof FTP Server 2019.0.0.50 contains a denial of service vulnerability in the Storage-Path configuratio
CVE-2018-25229 MEDIUM 5.5 DOWNGRADE BulletProof FTP Server 2019.0.0.50 contains a denial of service vulnerability in the SMTP configuration interf

References

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