What’s Vulnerable › Vulnerabilities

CVE-2021-46854

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-11-23 · updated 2026-06-17
• Weakness: CWE-401

Description

mod_radius in ProFTPD before 1.3.7c allows memory disclosure to RADIUS servers because it copies blocks of 16 characters.

Affected products

• ProFTPD: before 1.3.7c — fixed in 1.3.7c

How to fix

Upgrade to a fixed version: ProFTPD 1.3.7c. Check the vendor advisory for mitigations.

References

• http://www.proftpd.org/docs/RELEASE_NOTES-1.3.7e
• https://bugs.gentoo.org/811495
• https://github.com/proftpd/proftpd/issues/1284
• https://github.com/proftpd/proftpd/pull/1285
• https://security.gentoo.org/glsa/202305-03
• http://www.proftpd.org/docs/RELEASE_NOTES-1.3.7e
• https://bugs.gentoo.org/811495
• https://github.com/proftpd/proftpd/issues/1284
• https://github.com/proftpd/proftpd/pull/1285
• https://security.gentoo.org/glsa/202305-03

Get alerted when CVE-2021-46854 or the next vulnerability affects your stack