Auth bypass in Cisco License On-Prem

CVE-2026-76480

As part of Cisco's ongoing commitment to proactive security and product quality, the engineering team for Cisco License On-Prem, formerly Cisco Smart Software Manager On-Prem (SSM On-Prem), has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76480 are related to issues with improper authentication that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-306.

Vulnerability class: Broken Authentication

Published .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-76480?
CVE-2026-76480 is a critical-severity vulnerability in Cisco License On-Prem, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2026-10-07.
How severe is CVE-2026-76480?
Critical severity. CVSS v3 base score is 9.8 out of 10.