ProFTPD: Mehrere Schwachstellen
WID-SEC-2026-2424 · first 21.07.2026 · updated 21.07.2026 · CVSS 8,8
What it is about
ProFTPD ist ein Open Source FTP-Server. Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in ProFTPD ausnutzen, um beliebigen Programmcode auszuführen und vertrauliche Informationen offenzulegen.
Under what conditions?
Over the network, but only with valid access (login required), for example with stolen credentials or as an insider.
What can happen in the worst case
An attacker could use the vulnerability to
- beliebigen Programmcode auszuführen
- vertrauliche Informationen offenzulegen
Am I affected?
Affected according to the BSI:
- Open Source ProFTPD <1.3.9c
- Open Source ProFTPD <1.3.10rc3
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Open Source ProFTPD 1.3.9c
- Open Source ProFTPD 1.3.10rc3
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- GitHub Advisory Database vom 2026-07-20 github.com
- GitHub Advisory Database vom 2026-07-20 github.com
CVE: CVE-2026-63090, CVE-2026-63091
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.