CVE-2004-2523

CVE-2004-2523 is a medium-severity vulnerability in Openftpd Openftpd Ftp Server with a CVSS 2.0 base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Format string vulnerability in the msg command (cat_message function in msg.c) in OpenFTPD 0.30.2 and earlier allows remote authenticated users to execute arbitrary code via format string specifiers in the message argument.

Frequently asked questions

What is CVE-2004-2523?
Format string vulnerability in the msg command (cat_message function in msg.c) in OpenFTPD 0.30.2 and earlier allows remote authenticated users to execute arbitrary code via format string specifiers in the message argument.
How severe is CVE-2004-2523?
CVE-2004-2523 has a CVSS 2.0 base score of 6.5, rated medium severity.
Is CVE-2004-2523 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-2523?
CVE-2004-2523 primarily affects Openftpd Openftpd Ftp Server. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-2523?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2004-2523 published?
CVE-2004-2523 was published on 2004-12-31 and last updated on 2026-06-16.

References

Affected products (4)