CVE-2025-20363Exploitation status Not known exploited Fix Not confirmed Published 09/25/2025 Severity Critical CVE-2025-20254Exploitation status Not known exploited Fix Not confirmed Published 08/14/2025 Severity Medium CVE-2025-20263Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Buffer Overflow Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 08/14/2025 Severity High CVE-2025-20253Cisco IOS, IOS XE, Secure Firewall Adaptive Security Appliance, and Secure Firewall Threat Defense Software IKEv2 Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 08/14/2025 Severity High CVE-2025-20252Exploitation status Not known exploited Fix Not confirmed Published 08/14/2025 Severity Medium CVE-2025-20251Cisco Secure Firewall Adaptive Security Appliance and Cisco Secure Firewall Threat Defense Software Authenticated Arbitrary File Deletion Exploitation status Not known exploited Fix Not confirmed Published 08/14/2025 Severity High CVE-2025-20244Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access VPN Web Server Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 08/14/2025 Severity High CVE-2025-20243Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 08/14/2025 Severity High CVE-2025-20239Exploitation status Not known exploited Fix Not confirmed Published 08/14/2025 Severity High CVE-2025-20237Exploitation status Not known exploited Fix Not confirmed Published 08/14/2025 Severity Medium CVE-2025-20238Exploitation status Not known exploited Fix Not confirmed Published 08/14/2025 Severity Medium CVE-2025-20225Exploitation status Not known exploited Fix Not confirmed Published 08/14/2025 Severity Medium CVE-2025-20224Exploitation status Not known exploited Fix Not confirmed Published 08/14/2025 Severity Medium CVE-2025-20219Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Access Control Bypass Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 08/14/2025 Severity Medium CVE-2025-20136Cisco Adaptive Security Appliance and Firepower Threat Defense Software Network Address Translation DNS Inspection Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 08/14/2025 Severity High CVE-2025-20135Cisco Adaptive Security Appliance and Firepower Threat Defense Software DHCP Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 08/14/2025 Severity Medium CVE-2025-20127Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software for Firepower 3100 and 4200 Series TLS Cipher Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 08/14/2025 Severity High CVE-2025-20133Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Authentication Targeted Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 08/14/2025 Severity High CVE-2025-20134Cisco Adaptive Security Appliance and Firepower Threat Defense Software SSL/TLS Certificate Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 08/14/2025 Severity High CVE-2025-20182Cisco Adaptive Security Appliance Software, Firepower Threat Defense Software and IOS XE Software IKEv2 Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 05/07/2025 Severity High CVE-2020-27124Cisco Adaptive Security Appliance Software SSL/TLS Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 11/18/2024 Severity High CVE-2021-1444Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software Web Services Interface Cross-Site Scripting Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 11/18/2024 Severity Medium CVE-2024-20526Exploitation status Not known exploited Fix Not confirmed Published 10/23/2024 Severity Medium CVE-2024-20495Exploitation status Not known exploited Fix Not confirmed Published 10/23/2024 Severity High CVE-2024-20494Exploitation status Not known exploited Fix Not confirmed Published 10/23/2024 Severity High CVE-2024-20493Exploitation status Not known exploited Fix Not confirmed Published 10/23/2024 Severity Medium CVE-2024-20485Exploitation status Not known exploited Fix Not confirmed Published 10/23/2024 Severity Medium CVE-2024-20481Exploitation status KEV Fix Not confirmed Published 10/23/2024 Severity Medium CVE-2024-20426Exploitation status Not known exploited Fix Not confirmed Published 10/23/2024 Severity High CVE-2024-20408Exploitation status Not known exploited Fix Not confirmed Published 10/23/2024 Severity High CVE-2024-20402Exploitation status Not known exploited Fix Not confirmed Published 10/23/2024 Severity High CVE-2024-20384Exploitation status Not known exploited Fix Not confirmed Published 10/23/2024 Severity Medium CVE-2024-20382Exploitation status Not known exploited Fix Not confirmed Published 10/23/2024 Severity Medium CVE-2024-20370Exploitation status Not known exploited Fix Not confirmed Published 10/23/2024 Severity Medium CVE-2024-20341Cisco Adaptive Security Appliance WebVPN Cross-Site Scripting Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 10/23/2024 Severity Medium CVE-2024-20331Cisco Adaptive Security Appliance and Firepower Threat Defense Software VPN Authentication DoS Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 10/23/2024 Severity Medium CVE-2024-20329Cisco Adaptive Security Appliance Software Remote Command Injection Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 10/23/2024 Severity Critical CVE-2024-20299Cisco Adaptive Security Appliance and Firepower Threat Defense AnyConnect Access Control List Bypass Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 10/23/2024 Severity Medium CVE-2024-20297Cisco Adaptive Security Appliance and Firepower Threat Defense AnyConnect Access Control List Bypass Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 10/23/2024 Severity Medium CVE-2024-20260Cisco Adaptive Security Virtual Appliance and Secure Firewall Threat Defense Virtual SSL VPN Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 10/23/2024 Severity High CVE-2024-20268Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SNMP Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 10/23/2024 Severity High CVE-2024-20443Exploitation status Not known exploited Fix Not confirmed Published 08/07/2024 Severity Medium CVE-2024-20293Exploitation status Not known exploited Fix Not confirmed Published 05/22/2024 Severity Medium CVE-2024-20355Exploitation status Not known exploited Fix Not confirmed Published 05/22/2024 Severity Medium CVE-2024-20358Exploitation status Not known exploited Fix Not confirmed Published 04/24/2024 Severity Medium CVE-2024-20359Exploitation status KEV Fix Not confirmed Published 04/24/2024 Severity Medium CVE-2024-20353Exploitation status KEV Fix Not confirmed Published 04/24/2024 Severity High CVE-2023-20275Exploitation status Not confirmed Fix Not confirmed Published 12/12/2023 Severity Medium CVE-2023-20247Exploitation status Not known exploited Fix Not confirmed Published 11/01/2023 Severity Medium CVE-2023-20095Exploitation status Not confirmed Fix Not confirmed Published 11/01/2023 Severity High CVE-2023-20042Exploitation status Not confirmed Fix Not confirmed Published 11/01/2023 Severity Medium CVE-2023-20264Exploitation status Not confirmed Fix Not confirmed Published 11/01/2023 Severity Medium CVE-2023-20245Exploitation status Not confirmed Fix Not confirmed Published 11/01/2023 Severity Medium CVE-2023-20256Exploitation status Not known exploited Fix Not confirmed Published 11/01/2023 Severity Medium CVE-2023-20086Exploitation status Not confirmed Fix Not confirmed Published 11/01/2023 Severity High CVE-2023-20269Exploitation status KEV Fix Not confirmed Published 09/06/2023 Severity Medium CVE-2023-20234Exploitation status Not confirmed Fix Not confirmed Published 08/23/2023 Severity Medium CVE-2023-20006Exploitation status Not confirmed Fix Not confirmed Published 06/28/2023 Severity High CVE-2023-20107Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Low-Entropy Keys Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 03/23/2023 Severity Medium CVE-2022-20928Exploitation status Not confirmed Fix Not confirmed Published 11/10/2022 Severity Medium CVE-2022-20826Exploitation status Not confirmed Fix Not confirmed Published 11/10/2022 Severity Medium CVE-2022-20924Exploitation status Not confirmed Fix Not confirmed Published 11/10/2022 Severity High CVE-2022-20927Exploitation status Not confirmed Fix Not confirmed Published 11/10/2022 Severity High CVE-2022-20947Exploitation status Not confirmed Fix Not confirmed Published 11/10/2022 Severity High CVE-2022-20866Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software RSA Private Key Leak Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 08/10/2022 Severity High CVE-2022-20713Exploitation status Not confirmed Fix Not confirmed Published 08/10/2022 Severity Medium CVE-2022-20829Cisco Adaptive Security Device Manager and Adaptive Security Appliance Software Client-side Arbitrary Code Execution Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 06/24/2022 Severity Critical CVE-2022-20715Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Remote Access SSL VPN Denial of Service Vulnerability Exploitation status Not confirmed Fix Not confirmed Published 05/03/2022 Severity High CVE-2022-20737Cisco Adaptive Security Appliance Software Clientless SSL VPN Heap Overflow Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 05/03/2022 Severity High CVE-2022-20742Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IPsec IKEv2 VPN Information Disclosure Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 05/03/2022 Severity High CVE-2022-20759Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Privilege Escalation Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 05/03/2022 Severity High CVE-2022-20760Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software DNS Inspection Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 05/03/2022 Severity High CVE-2022-20745Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 05/03/2022 Severity High CVE-2022-20795Cisco Adaptive Security Appliance and Cisco Firepower Threat Defense Software AnyConnect SSL VPN Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 04/21/2022 Severity Medium CVE-2021-40118Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Denial of Service Vulnerabilities Exploitation status Not known exploited Fix Not confirmed Published 10/27/2021 Severity High CVE-2021-40117Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SSL/TLS Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 10/27/2021 Severity High CVE-2021-34794Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SNMP Access Control Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 10/27/2021 Severity Medium CVE-2021-34793Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Transparent Mode Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 10/27/2021 Severity High CVE-2021-34792Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Resource Exhaustion Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 10/27/2021 Severity High CVE-2021-34791Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Application Level Gateway Bypass Vulnerabilities Exploitation status Not known exploited Fix Not confirmed Published 10/27/2021 Severity Medium CVE-2021-34790Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Application Level Gateway Bypass Vulnerabilities Exploitation status Not known exploited Fix Not confirmed Published 10/27/2021 Severity Medium CVE-2021-34787Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Identity-Based Rule Bypass Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 10/27/2021 Severity Medium CVE-2021-34783Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Software-Based SSL/TLS Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 10/27/2021 Severity High CVE-2021-34781Cisco Firepower Threat Defense Software SSH Connections Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 10/27/2021 Severity High CVE-2021-40125Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv2 Site-to-Site VPN Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 10/27/2021 Severity Medium CVE-2021-1422Cisco Adaptive Security Appliance Software Release 9.16.1 and Cisco Firepower Threat Defense Software Release 7.0.0 IPsec Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 07/16/2021 Severity High CVE-2021-1585Cisco Adaptive Security Device Manager Remote Code Execution Vulnerability Exploitation status Not confirmed Fix Not confirmed Published 07/08/2021 Severity High CVE-2021-1504Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services VPN Denial of Service Vulnerabilities Exploitation status Not known exploited Fix Not confirmed Published 04/29/2021 Severity High CVE-2021-1501Cisco Adaptive Security Appliance Software and Cisco Firepower Threat Defense Software SIP Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 04/29/2021 Severity High CVE-2021-1493Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Buffer Overflow Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 04/29/2021 Severity High CVE-2021-1488Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software for Firepower 1000 and 2100 Series Appliances Command Injection Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 04/29/2021 Severity Medium CVE-2021-1476Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Command Injection Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 04/29/2021 Severity Medium CVE-2021-1445Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services VPN Denial of Service Vulnerabilities Exploitation status Not known exploited Fix Not confirmed Published 04/29/2021 Severity High CVE-2020-3554Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 10/21/2020 Severity High CVE-2020-3555Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SIP Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 10/21/2020 Severity Medium CVE-2020-3561Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software WebVPN CRLF Injection Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 10/21/2020 Severity Medium CVE-2020-3564Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software FTP Inspection Bypass Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 10/21/2020 Severity Medium CVE-2020-3572Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SSL/TLS Session Denial of Service Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 10/21/2020 Severity High CVE-2020-3578Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software WebVPN Portal Access Rule Bypass Vulnerability Exploitation status Not known exploited Fix Not confirmed Published 10/21/2020 Severity Medium CVE-2020-3580Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Cross-Site Scripting Vulnerabilities Exploitation status KEV Fix Not confirmed Published 10/21/2020 Severity Medium 
%20Software.svg){kind=icon}
