Cisco ASA Reachable Assertion (CVE-2021-1422)

A vulnerability in the software cryptography module of Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an authenticated, remote attacker or an unauthenticated attacker in a man-in-the-middle position to cause an unexpected reload of the...

Cisco ASA Cross-site Scripting (CVE-2024-20341)

A vulnerability in the VPN web client services feature of Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting XSS attack against a browser that is accessing an affected...

Rockwell Automation Allen-Bradley Stratix 5950 Improper Certificate Validation (CVE-2018-0227)

A vulnerability in the Secure Sockets Layer SSL Virtual Private Network VPN Client Certificate Authentication feature for Cisco Adaptive Security Appliance ASA could allow an unauthenticated, remote attacker to establish an SSL VPN connection and bypass certain SSL certificate verification steps...

Cisco ASA Improper Restriction of Operations within the Bounds of a Memory Buffer (CVE-2021-40117)

A vulnerability in SSL/TLS message handler for Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability exists because incomin...

Cisco ASA Missing Authorization (CVE-2025-20362)

Update: On November 5, 2025, Cisco became aware of a new attack variant against devices running Cisco Secure ASA Software or Cisco Secure FTD Software releases that are affected by CVE-2025-20333 and CVE-2025-20362. This attack can cause unpatched devices to unexpectedly reload, leading to denial...

Cisco ASA Uncontrolled Resource Consumption (CVE-2019-1693)

A vulnerability in the WebVPN service of Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an authenticated, remote attacker to cause a denial of service DoS condition on an affected device. The vulnerability is due to improper management o...

Cisco ASA Inconsistent Interpretation of HTTP Requests (CVE-2022-20713)

A vulnerability in the VPN web client services component of Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to conduct browser-based attacks against users of an affected device. This vulnerability is du...

Cisco ASA Incorrect Privilege Assignment (CVE-2022-20759)

A vulnerability in the web services interface for remote access VPN features of Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an authenticated, but unprivileged, remote attacker to elevate privileges to level 15. This vulnerability is d...

Cisco ASA Improper Restriction of Operations within the Bounds of a Memory Buffer (CVE-2019-12673)

A vulnerability in the FTP inspection engine of Cisco Adaptive Security ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. The vulnerability is due to insufficient validatio...

Cisco ASA Missing Release of Resource after Effective Lifetime (CVE-2024-20493)

A vulnerability in the login authentication functionality of the Remote Access SSL VPN feature of Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to deny further VPN user authentications for several...

Cisco ASA Cross-site Scripting (CVE-2020-3580)

Multiple vulnerabilities in the web services interface of Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to conduct cross-site scripting XSS attacks against a user of the web services interface of an...

Cisco ASA URL Redirection to Untrusted Site (CVE-2023-20264)

A vulnerability in the implementation of Security Assertion Markup Language SAML 2.0 single sign-on SSO for remote access VPN in Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to intercept the SAML...

Cisco ASA Out-of-bounds Write (CVE-2021-1504)

Multiple vulnerabilities in Cisco Adaptive Security Appliance ASA Software and Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. These vulnerabilities are due to lack of proper input validation o...

Rockwell Automation Allen-Bradley Stratix 5950 Resource Management Errors (CVE-2018-0240)

Multiple vulnerabilities in the Application Layer Protocol Inspection feature of Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of servi...

Cisco ASA Use of Insufficiently Random Values (CVE-2024-20331)

A vulnerability in the session authentication functionality of the Remote Access SSL VPN feature of Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to prevent users from authenticating. This vulnerabili...

Cisco ASA Uncontrolled Resource Consumption (CVE-2020-3529)

A vulnerability in the SSL VPN negotiation process for Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause a reload of an affected device, resulting in a denial of service DoS condition. The...

Cisco ASA Exposure of Sensitive Information to an Unauthorized Actor (CVE-2020-3259)

A vulnerability in the web services interface of Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to retrieve memory contents on an affected device, which could lead to the disclosure of confidential...

Cisco ASA Out-of-bounds Write (CVE-2021-1445)

Multiple vulnerabilities in Cisco Adaptive Security Appliance ASA Software and Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. These vulnerabilities are due to lack of proper input validation o...

Cisco ASA Improper Access Control (CVE-2019-1695)

A vulnerability in the detection engine of Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, adjacent attacker to send data directly to the kernel of an affected device. The vulnerability exists because the software...

Cisco ASA Improper Input Validation (CVE-2020-3304)

A vulnerability in the web interface of Cisco Adaptive Security Appliance ASA Software and Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service DoS condition. The vulnerability is...