CVE-2026-20332 Cisco Secure Firewall - Broken Access Control

Cisco Secure Adaptive Security Appliance Software, Cisco Secure Firewall Threat Defense Software, and Cisco Secure Firewall Management Center Software contain improper access control vulnerabilities caused by insufficient authorization checks, letting attackers bypass restrictions, exploit requires unspecified conditions.

CVSS base score 9.9 /10
Critical
CISA KEV
Not listed
Public exploit
None known
EPSS
0.30% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Published
16 September 2026
Updated
15 October 2026
Weakness
CWE-284

Vendor fix

Update to the latest available version containing the software hardening release.

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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