CVE-2018-25229: BulletProof FTP Server 2019.0.0.50 contains a denial of service vulnerability in the SMTP configuration interf

Routine

MEDIUM 5.5DOWNGRADE

CVE-2018-25229 is a medium-severity flaw (CVSS 5.5) 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 SMTP configuration interface that allows local attackers to crash the application by supplying an oversized string. Attackers can input a buffer of 257 'A' characters in the SMTP Server field and trigger a crash by clicking the Test button.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 87%)
CISA exploited list	No
Weakness	CWE-1282
Published	2026-03-30
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

2026-03-30 12:16 UTCPublished CVE record published
2026-06-17 01:55 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-2018-25229?

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

Is CVE-2018-25229 being exploited?

CVE-2018-25229 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-2018-25229 affect?

CVE-2018-25229 affects bulletproof ftp server. Severity is medium (CVSS 5.5). BulletProof FTP Server 2019.0.0.50 contains a denial of service vulnerability in the SMTP configuration interface that allows local attackers to crash the application by supplying an oversized string. Attackers can input a buffer of 257 'A'

How urgent is CVE-2018-25229?

Priority 28/100. Public exploit reference

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References

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