CVE-2024-0723: A vulnerability was found in freeSSHd 1.0.9 on Windows

This week

MEDIUM 5.3REMOTEDOWNGRADE

CVE-2024-0723 is a medium-severity flaw (CVSS 5.3) affecting freesshd. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in freeSSHd 1.0.9 on Windows. It has been classified as problematic. This affects an unknown part. The manipulation leads to denial of service. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-251547.

Why this priority

Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	3.6% (top 10%)
CISA exploited list	No
Weakness	CWE-404
Published	2024-01-19
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: freesshd

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

Am I affected?

Timeline

2024-01-19 17:15 UTCPublished CVE record published
2026-06-17 06:54 UTCUpdated Record last modified

freesshd freesshd DOWNGRADE

Affected: 1.0.9

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.9

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0.9 (Debian / Ubuntu)

apt-cache madison freesshd sudo apt install freesshd=<VERSION_BEFORE_1.0.9> sudo apt-mark hold freesshd

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

dnf --showduplicates list freesshd sudo dnf downgrade freesshd-<VERSION_BEFORE_1.0.9> sudo dnf versionlock add freesshd

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: freeSSHd 1.0.9 - Denial of Service (DoS)

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-2024-0723?

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

Is CVE-2024-0723 being exploited?

CVE-2024-0723 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-2024-0723 affect?

CVE-2024-0723 affects freesshd. Severity is medium (CVSS 5.3). A vulnerability was found in freeSSHd 1.0.9 on Windows. It has been classified as problematic. This affects an unknown part. The manipulation leads to denial of service. It is possible to initiate the attack remotely. The exploit has been d

How urgent is CVE-2024-0723?

Priority 51/100. Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Windows vulnerabilities

References

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