ProFTPD vulnerabilities: known CVEs & security history
ProFTPD · Network / FTP · 8 tracked CVEs · 1 actively exploited · updated November 2026 · what is a CVE? →
This is the full list of known vulnerabilities (CVEs) across all ProFTPD release lines — 8 in total, with 1 actively exploited in the wild. A CVE here doesn't mean your version is affected — check ProFTPD's current status and the safe version to run.
Known ProFTPD CVEs
Actively-exploited and most-severe first. Open any CVE for full details.
| CVE | Severity | CVSS | EPSS | Year |
|---|---|---|---|---|
| CVE-2015-3306⚡ exploited | critical | 10 | 98% | 2015 |
| CVE-2010-20103 | critical | 9.8 | 5% | 2025 |
| CVE-2026-63090 | high | 8.8 | 0% | 2026 |
| CVE-2026-35025 | high | 8.1 | 1% | 2026 |
| CVE-2026-42167 | high | 8.1 | 4% | 2026 |
| CVE-2026-53994 | high | 7.5 | 0% | 2026 |
| CVE-2026-63091 | medium | 6.5 | 0% | 2026 |
| CVE-2023-48795 | medium | 5.9 | 94% | 2023 |
Is my ProFTPD version affected?
The list above spans every release. To know whether your version is affected — and the minimum safe version to upgrade to — check it directly.
Check your ProFTPD version → · Monitor ProFTPD for new CVEs →
ProFTPD vulnerabilities — frequently asked
How many known vulnerabilities does ProFTPD have?
IsItPatched tracks 8 CVEs for ProFTPD, 1 of which is actively exploited (CISA KEV). 2 are critical-severity and 4 high-severity. These span every release line — what matters is whether the version you run is affected.
Does ProFTPD have any actively-exploited vulnerabilities?
Yes — 1 ProFTPD CVE is in CISA's Known Exploited Vulnerabilities catalog, meaning it is confirmed exploited in the wild. Patch it as a priority.
What is the most severe ProFTPD vulnerability?
Among tracked issues, CVE-2015-3306 (CRITICAL, CVSS 10), which is actively exploited, ranks highest — a Improper access control weakness.
Is ProFTPD safe to use?
It depends on the version. The latest supported ProFTPD release (1.3.9d) clears the known issues; older versions may still be affected. Check the exact version you run for a verdict.
CVE data aggregated from NVD, CISA KEV and EPSS (FIRST.org). Related: ProFTPD security status · ProFTPD end-of-life · actively-exploited CVEs. Always verify against ProFTPD's advisories — see our disclaimer.