Is there a public exploit for CVE-2026-90863?

No public exploit for CVE-2026-90863 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-90863?

CVE-2026-90863 scores CVSS 9.1 (v3.1), rated critical.

9.1 Critical

Missing authorization in the administrative interface of Progress Software WSFTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows…

CVE-2026-90863

Missing authorization in the administrative interface of Progress Software WSFTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows could allow a delegated Host Administrator to exceed their authorized scope, potentially enabling arbitrary command execution with elevated privileges and complete compromise of the underlying server.

Assessment

CVSS: 9.1 (v3.1)
Severity: Critical
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 29 October 2026
Last updated: 30 October 2026
Weakness: CWE-862, CWE-915
Assigner: security@progress.com

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

At the source

References

https://progress.lightning.force.com/lightning/r/Knowledge__kav/ka7Pb000001vl86IAA/view

Community proofs of concept

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