What is CVE-2026-19639?

CVE-2026-19639 is a medium-severity vulnerability in Tenable, Inc. Security Center, classified under Improper Validation of Specified Quantity in Input. CVSS score: 4.3/10. Published 2026-08-14.

How severe is CVE-2026-19639?

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

Vulnerability in Tenable, Inc. Security Center

CVE-2026-19639

An improper access control vulnerability exists where an authenticated non-administrative application user could potentially view settings outside of their assigned scope.

CVSS v3 metric

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

Affected products

Tenable, Inc. Security Center — versions 0

Weakness classification (CWE)

CWE-1284 — Improper Validation of Specified Quantity in Input

References

vulnreport@tenable.com (vendor-advisory)

Frequently asked questions

What is CVE-2026-19639?: CVE-2026-19639 is a medium-severity vulnerability in Tenable, Inc. Security Center, classified under Improper Validation of Specified Quantity in Input. CVSS score: 4.3/10. Published 2026-08-14.
How severe is CVE-2026-19639?: Medium severity. CVSS v3 base score is 4.3 out of 10.