Exploitation of SonicWall SSL VPN Vulnerability and Misconfigurations by Akira Ransomware Group on the Rise
September 11, 2025
Cybersecurity threats linked to the Akira ransomware group have intensified, specifically targeting SonicWall devices for initial breaches. Rapid7 has reported a notable increase in attacks on SonicWall appliances, coinciding with heightened Akira ransomware activity noted since late July 2025. SonicWall recently identified that these SSL VPN attacks exploit a year-old security vulnerability (CVE-2024-40766, CVSS score: 9.3) where local user passwords remained unchanged during migration. “We are seeing a surge in attempts by threat actors to brute-force user credentials,” the company commented. To mitigate risks, they advise enabling Botnet Filtering to block known threats and implementing Account Lockout policies. SonicWall also urged users to review LDAP SSL VPN Default User Groups, highlighting that misconfigurations could represent a “critical weak point.”
SonicWall SSL VPN Vulnerabilities Targeted by Akira Ransomware Group On September 11, 2025, cybersecurity experts reported a significant uptick in cyber intrusions targeting SonicWall devices, particularly those involving the SSL VPN feature. This surge is attributed to ongoing attacks by the Akira ransomware group, which has recently intensified its efforts…
Exploitation of SonicWall SSL VPN Vulnerability and Misconfigurations by Akira Ransomware Group on the Rise
September 11, 2025
Cybersecurity threats linked to the Akira ransomware group have intensified, specifically targeting SonicWall devices for initial breaches. Rapid7 has reported a notable increase in attacks on SonicWall appliances, coinciding with heightened Akira ransomware activity noted since late July 2025. SonicWall recently identified that these SSL VPN attacks exploit a year-old security vulnerability (CVE-2024-40766, CVSS score: 9.3) where local user passwords remained unchanged during migration. “We are seeing a surge in attempts by threat actors to brute-force user credentials,” the company commented. To mitigate risks, they advise enabling Botnet Filtering to block known threats and implementing Account Lockout policies. SonicWall also urged users to review LDAP SSL VPN Default User Groups, highlighting that misconfigurations could represent a “critical weak point.”