SonicWall Confirms Patched Vulnerability Behind Recent VPN Attacks, Not a Zero-Day

SonicWall has revealed that the recent spike in activity targeting its Gen 7 and newer firewalls with SSL VPN enabled is related to an older, now-patched bug and password reuse. "We now have high confidence that the recent SSL VPN activity is not connected to a zero-day vulnerability," the compan...

CVE-2025-40600

Use of Externally-Controlled Format String vulnerability in the SonicOS SSL VPN interface allows a remote unauthenticated attacker to cause service disruption...

Vulnerability fixed in SonicWall SonicOS

SonicWall has fixed a vulnerability in SonicOS. The vulnerability is in how SonicOS' SSL VPN interface handles externally controlled formatting strings. This can be exploited by external, unauthenticated attackers, leading to service disruptions. Attackers can exploit this vulnerability to affect...

CVE-2025-40600

Use of Externally-Controlled Format String vulnerability in the SonicOS SSL VPN interface allows a remote unauthenticated attacker to cause service disruption...

CVE-2025-40600

Use of Externally-Controlled Format String vulnerability in the SonicOS SSL VPN interface allows a remote unauthenticated attacker to cause service disruption...

CVE-2025-40600

Use of Externally-Controlled Format String vulnerability in the SonicOS SSL VPN interface allows a remote unauthenticated attacker to cause service disruption...

CVE-2025-40600

Use of Externally-Controlled Format String vulnerability in the SonicOS SSL VPN interface allows a remote unauthenticated attacker to cause service disruption...

CVE-2025-40600

The SonicOS operating system is vulnerable to a Use of Externally-Controlled Format String vulnerability within its SSL VPN interface . A remote, unauthenticated attacker can exploit this flaw to cause a service disruption or service failure . SonicWall has released a new version to address this ...

SonicOS Use of Externally-Controlled Format String Vulnerability

Use of Externally-Controlled Format String vulnerability in the SonicOS SSL VPN interface allows a remote unauthenticated attacker to cause service disruption.SonicWall strongly advises users of the SonicWall firewall products to upgrade to the mentioned fixed release version to address this...

SonicWALL SonicOS SSLVPN 格式化字符串错误漏洞

SonicWALL SonicOS SSLVPN is a virtual private network for secure remote access from SonicWALL USA. A Formatting String Error vulnerability exists in SonicWALL SonicOS SSLVPN that originates from an externally controlled formatting string and could result in a service interruption...

CVE-2025-40600: Use of Externally-Controlled Format String

Use of Externally-Controlled Format String vulnerability in the SonicOS SSL VPN interface allows a remote unauthenticated attacker to cause service disruption...

PT-2025-31264 · Sonicwall · Sonicos

Name of the Vulnerable Software and Affected Versions: SonicWall versions prior to 7.3.0-7012 Description: A format string vulnerability exists in the SonicOS SSL VPN interface, allowing a remote, unauthenticated attacker to cause a denial-of-service DoS condition. The vulnerability is due to the...

PT-2025-47543

SonicWall SonicOS and Affected Versions SonicWall versions prior to 7.3.1-7013 SonicWall versions prior to 8.0.3-8011 SonicWall versions 7.3.0-7012 and older SonicWall versions 8.0.2-8011 and older Description A stack-based buffer overflow vulnerability exists in the SonicOS SSLVPN service. This...

CVE-2023-1101

SonicOS SSLVPN improper restriction of excessive MFA attempts vulnerability allows an authenticated attacker to use excessive MFA codes...

CVE-2023-0656

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

CVE-2022-22274

A Stack-based buffer overflow vulnerability in the SonicOS via HTTP request allows a remote unauthenticated attacker to cause Denial of Service DoS or potentially results in code execution in the firewall...

CVE-2022-22278

A vulnerability in SonicOS CFS Content filtering service returns a large 403 forbidden HTTP response message to the source address when users try to access prohibited resource this allows an attacker to cause HTTP Denial of Service DoS attack...

CVE-2022-22276

A vulnerability in SonicOS SNMP service resulting exposure of sensitive information to an unauthorized user...

CVE-2022-22277

A vulnerability in SonicOS SNMP service resulting exposure of Wireless Access Point sensitive information in cleartext...

CVE-2021-20048

A Stack-based buffer overflow in the SonicOS SessionID HTTP response header allows a remote authenticated attacker to cause Denial of Service DoS and potentially results in code execution in the firewall. This vulnerability affected SonicOS Gen 5, Gen 6 and Gen 7 firmware versions...