CVE-2026-20106

Cisco Secure Firewall ASA/FTD Software vulnerability CVE-2026-20106 exposes Remote Access SSL VPN, HTTP management, and MUS functionality to unauthenticated, remote exploitation. The issue stems from insufficient input validation, allowing crafted packets to exhaust device memory and cause a DoS ...

CVE-2026-20039 Cisco Adaptive Security Appliance and Firepower Threat Defense Software SSL VPN Authentication Denial of Service Vulnerability

A vulnerability in the VPN web server of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability is due...

Fortinet Fortigate SSL-VPN Symlink Persistence Patch Bypass (FG-IR-25-934)

The version of Fortigate installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the FG-IR-25-934 advisory. - An Exposure of Sensitive Information to an Unauthorized Actor vulnerability CWE-200 vulnerability in Fortinet FortiOS 7.6.0...

CVE-2009-4911

Unspecified vulnerability on Cisco Adaptive Security Appliances ASA 5580 series devices with software before 8.12 allows remote attackers to cause a denial of service device crash via vectors involving SSL VPN and PPPoE transactions, aka Bug ID CSCsm77958...

CVE-2022-35416

H3C SSL VPN through 2022-07-10 allows wnm/login/login.json svpnlang cookie XSS...

CVE-2022-35842

An exposure of sensitive information to an unauthorized actor vulnerabiltiy CWE-200 in FortiOS SSL-VPN versions 7.2.0, versions 7.0.0 through 7.0.6 and versions 6.4.0 through 6.4.9 may allow a remote unauthenticated attacker to gain information about LDAP and SAML settings configured in FortiOS...

CVE-2019-18177

In certain Citrix products, information disclosure can be achieved by an authenticated VPN user when there is a configured SSL VPN endpoint. This affects Citrix ADC and Citrix Gateway 13.0-58.30 and later releases before the CTX276688 update...

CVE-2020-12812

An improper authentication vulnerability in SSL VPN in FortiOS 6.4.0, 6.2.0 to 6.2.3, 6.0.9 and below may result in a user being able to log in successfully without being prompted for the second factor of authentication FortiToken if they changed the case of their username...

CVE-2020-12819

A heap-based buffer overflow vulnerability in the processing of Link Control Protocol messages in FortiGate versions 5.6.12, 6.0.10, 6.2.4 and 6.4.1 and earlier may allow a remote attacker with valid SSL VPN credentials to crash the SSL VPN daemon by sending a large LCP packet, when tunnel mode i...

CVE-2020-12820

Under non-default configuration, a stack-based buffer overflow in FortiOS version 6.0.10 and below, version 5.6.12 and below may allow a remote attacker authenticated to the SSL VPN to crash the FortiClient NAC daemon fcnacd and potentially execute arbitrary code via requesting a large FortiClien...

CVE-2022-50800

H3C SSL VPN contains a user enumeration vulnerability that allows attackers to identify valid usernames through the 'txtUsrName' POST parameter. Attackers can submit different usernames to the loginsubmit.cgi endpoint and analyze response messages to distinguish between existing and non-existing...

CVE-2022-50800 H3C SSL VPN n/a Username Enumeration via Login Script Credential Verification

H3C SSL VPN contains a user enumeration vulnerability that allows attackers to identify valid usernames through the 'txtUsrName' POST parameter. Attackers can submit different usernames to the loginsubmit.cgi endpoint and analyze response messages to distinguish between existing and non-existing...

CVE-2022-50800 H3C SSL VPN n/a Username Enumeration via Login Script Credential Verification

H3C SSL VPN contains a user enumeration vulnerability that allows attackers to identify valid usernames through the 'txtUsrName' POST parameter. Attackers can submit different usernames to the loginsubmit.cgi endpoint and analyze response messages to distinguish between existing and non-existing...

CVE-2025-62631

An insufficient session expiration vulnerability CWE-613 vulnerability in Fortinet FortiOS 7.4.0, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions allows attacker to maintain access to network resources via an active SSLVPN session not terminated after a user's passwor...

PT-2025-50125

Name of the Vulnerable Software and Affected Versions Fortinet FortiOS versions 6.4, 7.0, 7.2, and 7.4.0 Description An insufficient session expiration exists in Fortinet FortiOS. Specifically, an active SSLVPN session may not terminate after a user’s password change under certain conditions. Thi...

PT-2025-47902

CVE-2025-13197 - CVE-2022-42363: SonicWall SSL-VPN Cross-Site Request Forgery CSRF CVE ID : CVE-2025-13197 Published : Nov. 22, 2025, 11:15 p.m. | 3 hours, 26 minutes ago Description : Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority. Severity: 0.0 | NA...

CVE-2025-40601

A Stack-based buffer overflow vulnerability in the SonicOS SSLVPN service allows a remote unauthenticated attacker to cause Denial of Service DoS, which could cause an impacted firewall to crash...

SonicWALL SonicOS SSLVPN 安全漏洞

SonicWALL SonicOS SSLVPN is a virtual private network for secure remote access from SonicWALL USA. A security vulnerability exists in SonicWALL SonicOS SSLVPN that stems from a stack-based buffer overflow that could lead to a denial of service attack...

SonicOS SSLVPN Pre-Auth Stack-Based Buffer Overflow Vulnerability

A Stack-based buffer overflow vulnerability in the SonicOS SSLVPN service allows a remote unauthenticated attacker to cause Denial of Service DoS, which could cause an impacted firewall to crash.SonicWall PSIRT is not aware of active exploitation in the wild. No reports of a PoC have been made...

VulnCheck KEV: CVE-2023-5970

Improper authentication in the SMA100 SSL-VPN virtual office portal allows a remote authenticated attacker to create an identical external domain user using accent characters, resulting in an MFA bypass...