CVE-2016-3125
HIGHEPSS 94th pctlDescription
The mod_tls module in ProFTPD before 1.3.5b and 1.3.6 before 1.3.6rc2 does not properly handle the TLSDHParamFile directive, which might cause a weaker than intended Diffie-Hellman (DH) key to be used and consequently allow attackers to have unspecified impact via unknown vectors.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Exploit Intelligence
High risk: more likely to be exploited than 94% of all known CVEs.
References
Related Vulnerabilities
Other CWE-254 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2016-0161 | Medium | 6.5 | 69% | - | - |
| CVE-2016-2296 | Critical | 9.4 | 64% | - | - |
| CVE-2015-1793 | Medium | 6.5 | 62% | - | Fix |
| CVE-2016-2118 | High | 7.5 | 37% | - | Fix |
| CVE-2016-3238 | High | 8.1 | 35% | - | - |
| CVE-2016-3198 | Medium | 6.5 | 32% | - | - |
Common questions
How do I fix CVE-2016-3125?
Upgrade proftpd-dfsg on debian 11 to 1.3.5b-1 or later.
Is CVE-2016-3125 being actively exploited?
Not that we know of. CVE-2016-3125 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 7.0% is the estimated probability that it will be exploited in the next 30 days. That is higher than 94% of all scored CVEs.
How severe is CVE-2016-3125?
CVE-2016-3125 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2016-3125 affect?
Published advisories record a fix for proftpd-dfsg (Debian). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.