What is CVE-2026-90862?

CVE-2026-90862 is a medium-severity vulnerability, classified under Improper Authentication. CVSS score: 4.3/10. Published 2026-10-29.

How severe is CVE-2026-90862?

Medium severity. CVSS v3 base score is 4.3 out of 10.

CVE-2026-90862

CVE-2026-90862

Improper authentication in the Web Transfer Module of Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows could allow an attacker with a user’s password to access certain files associated with that account without satisfying multi-factor authentication requirements.

Vulnerability class: Broken Authentication

Published 2026-10-29 · last modified 2026-10-29.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Weakness classification (CWE)

References

progress.lightning.force.com/lightning/r/Knowledge__kav/ka7Pb000001vl86IAA/view (vendor-advisory)

Frequently asked questions

What is CVE-2026-90862?: CVE-2026-90862 is a medium-severity vulnerability, classified under Improper Authentication. CVSS score: 4.3/10. Published 2026-10-29.
How severe is CVE-2026-90862?: Medium severity. CVSS v3 base score is 4.3 out of 10.