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Cisco Adaptive Security Appliance (ASA) Software — Vulnerabilities & Security Advisories 157

All 157 CVE vulnerabilities found in Cisco Adaptive Security Appliance (ASA) Software, with AI-generated Chinese analysis, references, and POCs.

This page aggregates known security vulnerabilities for the Cisco Adaptive Security Appliance (ASA) Software, categorized under network security weaknesses. It compiles a comprehensive list of identified flaws affecting this firewall platform, covering data ranging from early legacy versions to recent releases up to the current year. Users can track official vendor advisories issued by Cisco to stay informed about critical patches and mitigation strategies. The resource allows researchers and administrators to understand specific weakness classes such as buffer overflows or authentication bypasses in the context of ASA appliances. Additionally, one can look up a product’s vulnerability history to assess long-term security trends and evaluate the impact of specific software versions. This centralized view helps organizations prioritize remediation efforts based on severity and exploit availability. The data supports compliance audits by providing a clear record of disclosed issues. By reviewing these aggregated entries, defenders can better protect their network infrastructure against known threats. The information is structured to facilitate quick lookup and cross-referencing with internal inventory systems. No specific CVE IDs are listed in this summary view, but detailed references are available in the linked entries. This resource serves as a foundational tool for maintaining the integrity and availability of Cisco ASA deployments across enterprise environments.

Vendor: Cisco

CVE ID Title CVSS Severity Published
CVE-2025-20263 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Buffer Overflow Denial of Service Vulnerability CWE-680 8.6 High 2025-08-14
CVE-2025-20254 Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 安全漏洞 CWE-401 5.8 Medium 2025-08-14
CVE-2025-20253 Cisco IOS, IOS XE, Secure Firewall Adaptive Security Appliance, and Secure Firewall Threat Defense Software IKEv2 Denial of Service Vulnerability CWE-835 8.6 High 2025-08-14
CVE-2025-20252 Cisco Secure Firewall Management Center和Cisco Secure Firewall Adaptive Security Appliance 安全漏洞 CWE-401 5.8 Medium 2025-08-14
CVE-2025-20244 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access VPN Web Server Denial of Service Vulnerability CWE-1287 7.7 High 2025-08-14
CVE-2025-20251 Cisco Secure Firewall Adaptive Security Appliance and Cisco Secure Firewall Threat Defense Software Authenticated Arbitrary File Deletion CWE-1287 8.5 High 2025-08-14
CVE-2025-20243 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Denial of Service Vulnerability CWE-835 8.6 High 2025-08-14
CVE-2025-20237 Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 安全漏洞 CWE-146 6.0 Medium 2025-08-14
CVE-2025-20238 Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 安全漏洞 CWE-1244 6.0 Medium 2025-08-14
CVE-2025-20224 Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 安全漏洞 CWE-401 5.8 Medium 2025-08-14
CVE-2025-20219 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Access Control Bypass Vulnerability CWE-284 5.3 Medium 2025-08-14
CVE-2025-20136 Cisco Adaptive Security Appliance and Firepower Threat Defense Software Network Address Translation DNS Inspection Denial of Service Vulnerability CWE-835 8.6 High 2025-08-14
CVE-2025-20135 Cisco Adaptive Security Appliance and Firepower Threat Defense Software DHCP Denial of Service Vulnerability CWE-401 4.3 Medium 2025-08-14
CVE-2025-20133 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Authentication Targeted Denial of Service Vulnerability CWE-401 8.6 High 2025-08-14
CVE-2025-20134 Cisco Adaptive Security Appliance and Firepower Threat Defense Software SSL/TLS Certificate Denial of Service Vulnerability CWE-415 8.6 High 2025-08-14
CVE-2025-20127 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software for Firepower 3100 and 4200 Series TLS Cipher Denial of Service Vulnerability CWE-404 7.7 High 2025-08-14
CVE-2025-20182 Cisco Adaptive Security Appliance Software, Firepower Threat Defense Software and IOS XE Software IKEv2 Denial of Service Vulnerability CWE-787 8.6 High 2025-05-07
CVE-2020-27124 Cisco Adaptive Security Appliance Software SSL/TLS Denial of Service Vulnerability CWE-457 8.6 High 2024-11-18
CVE-2021-1444 Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software Web Services Interface Cross-Site Scripting Vulnerability CWE-79 6.1 Medium 2024-11-18
CVE-2024-20526 Cisco Adaptive Security Appliance 安全漏洞 CWE-400 5.3 Medium 2024-10-23
CVE-2024-20495 Cisco Firepower Threat Defense和Cisco Adaptive Security Appliance 安全漏洞 CWE-20 8.6 High 2024-10-23
CVE-2024-20494 Cisco Firepower Threat Defense和Cisco Adaptive Security Appliance 安全漏洞 CWE-1287 8.6 High 2024-10-23
CVE-2024-20493 Cisco Firepower Threat Defense和Cisco Adaptive Security Appliance 安全漏洞 CWE-772 5.3 Medium 2024-10-23
CVE-2024-20485 Cisco Firepower Threat Defense和Cisco Adaptive Security Appliance 安全漏洞 CWE-94 6.0 Medium 2024-10-23
CVE-2024-20481 Cisco Firepower Threat Defense和Cisco Adaptive Security Appliance 安全漏洞 CWE-772 5.8 Medium 2024-10-23
CVE-2024-20426 Cisco Firepower Threat Defense和Cisco Adaptive Security Appliance 安全漏洞 CWE-476 8.6 High 2024-10-23
CVE-2024-20408 Cisco Firepower Threat Defense和Cisco Adaptive Security Appliance 安全漏洞 CWE-1287 7.7 High 2024-10-23
CVE-2024-20402 Cisco Firepower Threat Defense和Cisco Adaptive Security Appliance 安全漏洞 CWE-788 8.6 High 2024-10-23
CVE-2024-20384 Cisco Firepower Threat Defense和Cisco Adaptive Security Appliance 安全漏洞 CWE-290 5.8 Medium 2024-10-23
CVE-2024-20382 Cisco Firepower Threat Defense和Cisco Adaptive Security Appliance 安全漏洞 CWE-80 6.1 Medium 2024-10-23

All 157 known CVE vulnerabilities affecting Cisco Adaptive Security Appliance (ASA) Software with full Chinese analysis, references, and POCs where available.