CVE-2023-39063: Buffer Overflow vulnerability in RaidenFTPD 2.4.4005 allows a local attacker to execute arbitrary code via the

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HIGH 7.8DOWNGRADE

CVE-2023-39063 is a high-severity flaw (CVSS 7.8) affecting raidenftpd. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer Overflow vulnerability in RaidenFTPD 2.4.4005 allows a local attacker to execute arbitrary code via the Server name field of the Step by step setup wizard.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 61%)
CISA exploited list	No
Weakness	CWE-120
Published	2023-09-11
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: raidenftpd

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

Am I affected?

Timeline

2023-09-11 19:15 UTCPublished CVE record published
2026-06-17 06:11 UTCUpdated Record last modified

raidenftpd raidenftpd DOWNGRADE

Affected: 2.4.4050

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.4.4050

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.4.4050 (Debian / Ubuntu)

apt-cache madison raidenftpd sudo apt install raidenftpd=<VERSION_BEFORE_2.4.4050> sudo apt-mark hold raidenftpd

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

dnf --showduplicates list raidenftpd sudo dnf downgrade raidenftpd-<VERSION_BEFORE_2.4.4050> sudo dnf versionlock add raidenftpd

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-2023-39063?

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

Is CVE-2023-39063 being exploited?

CVE-2023-39063 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-2023-39063 affect?

CVE-2023-39063 affects raidenftpd. Severity is high (CVSS 7.8). Buffer Overflow vulnerability in RaidenFTPD 2.4.4005 allows a local attacker to execute arbitrary code via the Server name field of the Step by step setup wizard.

How urgent is CVE-2023-39063?

Priority 42/100. High severity; Public exploit reference

Related CVEs

CVE-2023-38960 HIGH 7.3 DOWNGRADE Insecure Permissions issue in Raiden Professional Server RaidenFTPD v.2.4 build 4005 allows a local attacker t

References

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