CVE-2026-76480 Cisco License On-Prem - Authentication Bypass

Cisco License On-Prem contains an authentication bypass caused by improper authentication implementation, letting attackers bypass authentication, exploit requires no special conditions.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.33% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Broken Authentication
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
7 October 2026
Updated
15 October 2026
Weakness
CWE-306

Vendor fix

Update to the latest available version with security hardening fixes.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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