The mod_tls module in ProFTPD before 1.3.5b and 1.3.6 before 1.3.6rc2 does not properly…
Priority MEDIUM 43CWE-254Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.06979 94th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:proftpd:proftpd:*:a:*:*:*:*:*:* | up to 1.3.5 | Vulnerable | ProFTPD |
| cpe:2.3:a:proftpd:proftpd:1.3.6:rc1:*:*:*:*:*:* | 1.3.6 rc1 | Vulnerable | ProFTPD |
| cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* | 13.1 | Vulnerable | openSUSE |
| cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:* | 22 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* | 23 | Vulnerable | Fedoraproject |
- cpe:2.3:a:proftpd:proftpd:*:a:*:*:*:*:*:* Versions up to 1.3.5 Vulnerable ·ProFTPD
- cpe:2.3:a:proftpd:proftpd:1.3.6:rc1:*:*:*:*:*:* Versions 1.3.6 rc1 Vulnerable ·ProFTPD
- cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* Versions 13.1 Vulnerable ·openSUSE
- cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:* Versions 22 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* Versions 23 Vulnerable ·Fedoraproject
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2016-3125
- 2026-10-03 Alias added: GHSA-j9wr-gwc4-26xh
References
Advisory 5
Other 5
- [oss-security] 20160311 Re: ProFTPD before 1.3.5b/1.3.6rc2 uses 1024 bit Diffie Hellman parameters for TLS even if user sets manual parameters
- http://proftpd.org/docs/NEWS-1.3.6rc2
- http://proftpd.org/docs/NEWS-1.3.5b
- http://bugs.proftpd.org/show_bug.cgi?id=4230
- [oss-security] 20160311 ProFTPD before 1.3.5b/1.3.6rc2 uses 1024 bit Diffie Hellman parameters for TLS even if user sets manual parameters
Sources
- CVE-2016-3125 · CVE Program
- CVE-2016-3125 · NVD
- FIRST EPSS
- GHSA-j9wr-gwc4-26xh · GitHub Advisory Database · CC BY 4.0
- CVE-2016-3125 · Red Hat security data · CC BY 4.0
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