What’s Vulnerable › Vulnerabilities

CVE-2023-51713

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-12-22 · updated 2026-06-17
• Weakness: CWE-125

Description

make_ftp_cmd in main.c in ProFTPD before 1.3.8a has a one-byte out-of-bounds read, and daemon crash, because of mishandling of quote/backslash semantics.

Affected products

• ProFTPD: before 1.3.8a — fixed in 1.3.8a

How to fix

Upgrade to a fixed version: ProFTPD 1.3.8a. Check the vendor advisory for mitigations.

References

• https://github.com/proftpd/proftpd/blob/1.3.8/NEWS
• https://github.com/proftpd/proftpd/issues/1683
• https://github.com/proftpd/proftpd/issues/1683#issuecomment-1712887554
• https://github.com/proftpd/proftpd/blob/1.3.8/NEWS
• https://github.com/proftpd/proftpd/issues/1683
• https://github.com/proftpd/proftpd/issues/1683#issuecomment-1712887554
• https://lists.debian.org/debian-lts-announce/2024/11/msg00032.html

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