CVE-2005-2850: SlimFTPd 3.17 allows remote attackers to cause a denial of service (crash) via certain (1) USER and (2) PASS c

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MEDIUM 5.0DOWNGRADE

CVE-2005-2850 is a medium-severity flaw (CVSS 5.0) affecting slimftpd. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SlimFTPd 3.17 allows remote attackers to cause a denial of service (crash) via certain (1) USER and (2) PASS commands, possibly due to a buffer overflow or off-by-one error.

Why this priority

EPSS top 6%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	7.2% (top 6%)
CISA exploited list	No
Published	2005-09-08
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: whitsoft development

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2005-09-08 10:03 UTCPublished CVE record published
2026-06-16 22:15 UTCUpdated Record last modified

whitsoft development slimftpd DOWNGRADE

Affected: 3.17

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.17

1. Check installed version

apt-cache policy slimftpd || rpm -q slimftpd || slimftpd --version

2. No fixed release: DOWNGRADE to a release before 3.17 (Debian / Ubuntu)

apt-cache madison slimftpd sudo apt install slimftpd=<VERSION_BEFORE_3.17> sudo apt-mark hold slimftpd

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

dnf --showduplicates list slimftpd sudo dnf downgrade slimftpd-<VERSION_BEFORE_3.17> sudo dnf versionlock add slimftpd

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: WhitSoft Development SlimFTPd 3.17 - Remote Denial of Service

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-2005-2850?

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

Is CVE-2005-2850 being exploited?

CVE-2005-2850 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-2005-2850 affect?

CVE-2005-2850 affects slimftpd. Severity is medium (CVSS 5.0). SlimFTPd 3.17 allows remote attackers to cause a denial of service (crash) via certain (1) USER and (2) PASS commands, possibly due to a buffer overflow or off-by-one error.

How urgent is CVE-2005-2850?

Priority 46/100. EPSS top 6%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2005-2373 HIGH 7.2 DOWNGRADE Buffer overflow in SlimFTPd 3.15 and 3.16 allows remote authenticated users to execute arbitrary code via a lo
CVE-2004-2418 HIGH 7.2 DOWNGRADE Buffer overflow in SlimFTPd 3.15 and earlier allows local users to execute arbitrary code via a long command,
CVE-2001-1131 MEDIUM 5.0 DOWNGRADE Directory traversal vulnerability in WhitSoft Development SlimFTPd 2.2 allows an attacker to read arbitrary fi

References

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