CVE Vulnerability Advisory Database
Filter vulnerabilities by CVSS severity, active CISA KEV exploitation, and technology stack.
Cisco ASA and FTD SSL VPN Remote Denial of Service Vulnerability (CVE-2026-76418)
[Affected Scope] Cisco ASA and FTD Software with Remote Access SSL VPN enabled and secondary authentication configured.
[Impact] Unauthenticated remote attackers can trigger an unexpected device reload, leading to a complete Denial of Service (DoS) of VPN services.
[Mitigation] Apply the latest security patches from Cisco immediately; review secondary authentication configurations if patching is delayed.
Cisco ASA and FTD SSL VPN Remote Denial of Service Vulnerability (CVE-2026-20349)
[Affected Scope] Cisco Secure Firewall ASA and FTD Software with Remote Access SSL VPN service enabled
[Impact] Unauthenticated, remote attackers can cause an unexpected device reload, leading to a complete Denial of Service (DoS) condition
[Mitigation] Immediately upgrade to the patched software versions recommended in the Cisco Security Advisory
Citrix NetScaler ADC and Gateway Memory Overflow Vulnerability (CVE-2026-8452) Critical Security Advisory
[Affected Scope] Citrix NetScaler ADC and NetScaler Gateway appliances configured as a Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server
[Impact] Unauthenticated remote attackers can trigger a memory overflow, leading to unpredictable behavior, Denial of Service (DoS), or potential Remote Code Execution (RCE)
[Mitigation] Immediately apply the official security patches provided by Citrix and restrict external access to affected virtual servers
Fortinet FortiOS and FortiProxy SSL-VPN Out-of-bounds Write Remote Code Execution Vulnerability (CVE-2024-21762) Critical Security Advisory
[Affected Scope] FortiOS versions 6.0 through 7.4.2 and FortiProxy versions 1.0 through 7.4.2 with SSL-VPN service enabled
[Impact] Unauthenticated remote attackers can execute arbitrary code or commands on the target system via specially crafted HTTP requests
[Mitigation] Immediately upgrade to the patched firmware versions, or disable the SSL-VPN service as a temporary workaround
SonicWall SMA100 SSL-VPN Management Interface Remote Command Injection Vulnerability (CVE-2023-44221) Analysis and Mitigation Guide
[Affected Scope] SonicWall SMA100 series (SMA 200, 210, 400, 410, 500v) running firmware versions 10.2.1.11-63sv and below.
[Impact] A remote authenticated attacker with administrative privileges can inject arbitrary OS commands via the management interface, executing them with 'nobody' user privileges.
[Mitigation] Immediately upgrade the SMA100 firmware to the patched version (10.2.1.12-65sv or higher) and restrict access to the management interface.
Fortinet FortiOS and FortiProxy SSL-VPN Heap-based Buffer Overflow Vulnerability (CVE-2023-27997) Technical Advisory
[Affected Scope] FortiOS versions 7.2.4 and below, 7.0.11 and below, 6.4.12 and below, 6.0.16 and below; FortiProxy versions 7.2.3 and below, 7.0.9 and below, 2.0.12 and below, and all 1.2/1.1 versions with SSL-VPN enabled
[Impact] An unauthenticated remote attacker can execute arbitrary code or commands with root privileges on the target appliance via specifically crafted HTTP requests
[Mitigation] Immediately upgrade FortiOS and FortiProxy to the patched versions, or disable the SSL-VPN service as a temporary workaround
Array Networks AG and vxAG SSL VPN Gateway Unauthenticated Remote Code Execution (RCE) Vulnerability (CVE-2023-28461) Analysis and Mitigation Guide
[Affected Scope] Array Networks Array AG Series and vxAG virtual appliances running version 9.4.0.481 and earlier
[Impact] Unauthenticated remote attackers can browse the filesystem of the SSL VPN gateway by manipulating the 'flags' attribute in HTTP headers, leading to full Remote Code Execution (RCE)
[Mitigation] Immediately upgrade to the patched firmware version released by the vendor, and restrict access to the management interface and VPN ports from untrusted networks
Fortinet FortiOS and FortiProxy SSL-VPN Heap-based Buffer Overflow Remote Code Execution Vulnerability (CVE-2022-42475) Security Advisory
[Affected Scope] FortiOS versions 7.2.0 to 7.2.2, 7.0.0 to 7.0.8, 6.4.0 to 6.4.10, 6.2.0 to 6.2.11, 6.0.15 and earlier; FortiProxy versions 7.2.0 to 7.2.1, 7.0.7 and earlier
[Impact] An unauthenticated remote attacker can execute arbitrary code or commands with root privileges on the target system by sending specifically crafted HTTP/HTTPS requests
[Mitigation] Immediately upgrade to the patched firmware versions or disable the SSL-VPN service and restrict access using local-in policies if patching is delayed
Cisco Small Business RV Series Routers SSL VPN Remote Code Execution Vulnerability (CVE-2022-20699) Technical Advisory
[Affected Scope] Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers
[Impact] Unauthenticated remote attackers can execute arbitrary code with root privileges or cause a complete system compromise via the SSL VPN gateway
[Mitigation] Immediately upgrade to the latest patched firmware versions provided by Cisco, and restrict access to the SSL VPN port from untrusted networks
SonicWall SMA100 SSL-VPN SQL Injection and Credential Theft Vulnerability (CVE-2021-20016) Security Advisory
[Affected Scope] SonicWall SMA100 appliances running firmware build version 10.x
[Impact] Unauthenticated remote attackers can execute arbitrary SQL queries to retrieve usernames, passwords, and active session information, leading to complete device compromise
[Mitigation] Immediately upgrade the SMA100 firmware to version 10.2.0.5 or higher to apply official security patches
Pulse Connect Secure Admin Web Interface Template Upload Remote Code Execution Vulnerability (CVE-2020-8243) Analysis and Mitigation Guide
[Affected Scope] Pulse Connect Secure (PCS) versions prior to 9.1R8.2 admin web interface
[Impact] An authenticated administrator-level attacker can upload a malicious custom template to execute arbitrary system commands and fully compromise the VPN gateway
[Mitigation] Immediately upgrade Pulse Connect Secure to version 9.1R8.2 or higher, and restrict external access to the admin interface
Fortinet FortiOS SSL VPN Multi-Factor Authentication (MFA) Bypass Vulnerability (CVE-2020-12812)
[Affected Scope] SSL VPN service running on FortiOS 6.4.0, 6.2.0 to 6.2.3, and 6.0.9 and below
[Impact] Attackers can bypass the second-factor authentication (FortiToken) and gain unauthorized access to the internal network by altering the case of the username
[Mitigation] Immediately upgrade FortiOS to the patched versions (6.4.1, 6.2.4, 6.0.10 or higher) and audit SSL VPN access logs
Fortinet FortiOS and FortiProxy SSL VPN Improper Authorization Vulnerability (CVE-2018-13382) Security Advisory
[Affected Scope] FortiOS 6.0.0 to 6.0.4, 5.6.0 to 5.6.8, 5.4.1 to 5.4.10, and FortiProxy 1.0/1.1/1.2/2.0 series
[Impact] An unauthenticated remote attacker can modify the password of any SSL VPN web portal user via specially crafted HTTP requests, leading to unauthorized network access
[Mitigation] Immediately upgrade the firmware to the patched versions, or restrict/disable the SSL VPN web portal service as a temporary workaround
Fortinet FortiOS and FortiProxy SSL VPN Path Traversal Vulnerability (CVE-2018-13379) Security Advisory
[Affected Scope] Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.3 to 5.6.7, 5.4.6 to 5.4.12, and specific FortiProxy versions with SSL VPN web portal enabled
[Impact] Unauthenticated remote attackers can download arbitrary system files (including active session credentials) via specially crafted HTTP requests, leading to full network compromise
[Mitigation] Immediately upgrade FortiOS/FortiProxy firmware to the patched versions, terminate active SSL VPN sessions, and enforce a global password reset
Fortinet FortiOS & FortiProxy SSL VPN Heap Buffer Overflow Vulnerability (CVE-2018-13383) Technical Advisory
[Affected Scope] FortiOS versions 6.0.0 through 6.0.4, 5.6.0 through 5.6.10, 5.4.0 through 5.4.12, 5.2.14 and earlier, and FortiProxy versions 2.0.0, 1.2.8 and earlier with SSL VPN web portal enabled
[Impact] Remote attackers can trigger a heap buffer overflow by forcing the proxy to process malicious javascript href data, leading to the termination of the SSL VPN web service and disconnection of active user sessions
[Mitigation] Immediately upgrade FortiOS and FortiProxy firmware to patched versions, or temporarily disable the SSL VPN web portal feature and restrict access to trusted source IPs
Pulse Secure Pulse Connect Secure (PCS) Arbitrary File Reading Vulnerability (CVE-2019-11510) Security Advisory
[Affected Scope] Pulse Connect Secure (PCS) versions prior to 8.2R12.1, 8.3R7.1, and 9.0R3.4
[Impact] An unauthenticated remote attacker can send a specially crafted URI to read arbitrary system files and session databases, potentially leading to complete credential theft and network compromise.
[Mitigation] Immediately upgrade to the official patched firmware versions (8.2R12.1, 8.3R7.1, 9.0R3.4, or later).
Pulse Secure VPN Admin Web Interface Remote Command Injection Vulnerability (CVE-2019-11539)
[Affected Scope] Pulse Connect Secure (versions prior to 9.0R3.4, 8.3R7.1, 8.2R12.1, 8.1R15.1) and Pulse Policy Secure (versions prior to 9.0R3.2, 5.4R7.1, 5.3R12.1, 5.2R12.1, 5.1R15.1)
[Impact] An authenticated attacker with administrative privileges can inject and execute arbitrary OS commands via the admin web interface, leading to complete compromise of the VPN appliance.
[Mitigation] Immediately upgrade to the patched firmware versions provided by the vendor and restrict external access to the admin interface.