# Cisco Secure Firewall Adaptive Security Appliance vulnerabilities

Source: https://junglewise.ai/threats/technologies/secure-firewall-adaptive-security-appliance  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 11 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/secure-firewall-adaptive-security-appliance.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 4 vulnerabilities in Cisco Secure Firewall Adaptive Security Appliance: 0 in the last 7 days and 2 in the last 90 days, 2 of them critical and 2 exploited in the wild. The most recent, CVE-2026-20336, was published on 16 September 2026. Nothing in the last four weeks, down from 2 vulnerabilities in the four before.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 2
- All time: 4 (2 critical, 2 exploited in the wild)

## About Cisco Secure Firewall Adaptive Security Appliance

Network security appliance that provides firewall, intrusion prevention, and threat defense capabilities.

## Latest Cisco Secure Firewall Adaptive Security Appliance vulnerabilities

- [CVE-2026-20336: Cisco Secure Firewall software resource lifecycle vulnerability](https://junglewise.ai/threats/cve-2026-20336-cisco-secure-firewall-software-resource-lifecycle-vulnerability) (high, CVSS 8.8, published 16 Sep 2026)
- [CVE-2026-20120: Cisco Secure Firewall ASA/FTD access control bypass in OGS](https://junglewise.ai/threats/cve-2026-20120-cisco-secure-firewall-asa-ftd-access-control-bypass-in-ogs) (medium, CVSS 5.8, published 16 Sep 2026)
- [CVE-2025-20362: Cisco Secure Firewall ASA and FTD missing authorization in VPN web server](https://junglewise.ai/threats/cve-2025-20362-cisco-secure-firewall-asa-and-ftd-missing-authorization-in-vpn) (critical, exploited in the wild, CVSS 6.5, published 25 Sep 2025)
- [CVE-2025-20333: Cisco ASA and FTD buffer overflow in VPN web server](https://junglewise.ai/threats/cve-2025-20333-cisco-asa-and-ftd-buffer-overflow-in-vpn-web-server) (critical, exploited in the wild, CVSS 9.9, published 25 Sep 2025)

## Most severe Cisco Secure Firewall Adaptive Security Appliance vulnerabilities

- [CVE-2025-20333: Cisco ASA and FTD buffer overflow in VPN web server](https://junglewise.ai/threats/cve-2025-20333-cisco-asa-and-ftd-buffer-overflow-in-vpn-web-server) (critical, exploited in the wild, CVSS 9.9, published 25 Sep 2025)
- [CVE-2025-20362: Cisco Secure Firewall ASA and FTD missing authorization in VPN web server](https://junglewise.ai/threats/cve-2025-20362-cisco-secure-firewall-asa-and-ftd-missing-authorization-in-vpn) (critical, exploited in the wild, CVSS 6.5, published 25 Sep 2025)
- [CVE-2026-20336: Cisco Secure Firewall software resource lifecycle vulnerability](https://junglewise.ai/threats/cve-2026-20336-cisco-secure-firewall-software-resource-lifecycle-vulnerability) (high, CVSS 8.8, published 16 Sep 2026)
- [CVE-2026-20120: Cisco Secure Firewall ASA/FTD access control bypass in OGS](https://junglewise.ai/threats/cve-2026-20120-cisco-secure-firewall-asa-ftd-access-control-bypass-in-ogs) (medium, CVSS 5.8, published 16 Sep 2026)

## Vulnerabilities per week

Nothing in the last four weeks, down from 2 vulnerabilities in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 2 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other Cisco technologies

- [Cisco IOS](https://junglewise.ai/threats/technologies/ios): 70 vulnerabilities
- [Cisco Identity Services Engine](https://junglewise.ai/threats/technologies/identity-services-engine): 58 vulnerabilities
- [Cisco IOS XE](https://junglewise.ai/threats/technologies/ios-xe): 57 vulnerabilities
- [Cisco Firepower Threat Defense](https://junglewise.ai/threats/technologies/firepower-threat-defense): 33 vulnerabilities
- [Cisco Firepower Threat Defense Software](https://junglewise.ai/threats/technologies/firepower-threat-defense-software): 33 vulnerabilities
- [Cisco IOS XR](https://junglewise.ai/threats/technologies/ios-xr): 31 vulnerabilities
- [Cisco IOS XE Software](https://junglewise.ai/threats/technologies/ios-xe-software): 28 vulnerabilities
- [Cisco Adaptive Security Appliance Software](https://junglewise.ai/threats/technologies/secure-firewall-asa-software): 23 vulnerabilities
- [Cisco Snort 3](https://junglewise.ai/threats/technologies/snort-3): 20 vulnerabilities
- [Cisco Ios Software](https://junglewise.ai/threats/technologies/ios-software): 19 vulnerabilities
- [Cisco ISE Passive Identity Connector](https://junglewise.ai/threats/technologies/ise-passive-identity-connector): 19 vulnerabilities
- [Cisco Secure Firewall Management Center](https://junglewise.ai/threats/technologies/secure-firewall-management-center): 16 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Cisco Secure Firewall Adaptive Security Appliance vulnerabilities", https://junglewise.ai/threats/technologies/secure-firewall-adaptive-security-appliance, 11 November 2026.