SonicWall
VMware ESXi zero-days likely exploited a year before disclosure
Chinese-speaking threat actors used a compromised SonicWall VPN appliance to deliver a VMware ESXi exploit toolkit that seems to have been developed more than a year before the targeted vulnerabilities became publicly known. In attacks from December 2025 analyzed by Huntress, managed security company, the hackers used a sophisticated virtual machine (VM) escape that likely exploited three VMware […]
Sonicwall warns of new SMA1000 zero-day exploited in attacks
SonicWall warned customers today to patch a vulnerability in the SonicWall SMA1000 Appliance Management Console (AMC) that was chained in zero-day attacks to escalate privileges. According to SonicWall, this medium-severity local privilege escalation security flaw (CVE-2025-40602) was reported by Clément Lecigne and Zander Work of the Google Threat Intelligence Group, and doesn’t affect SSL-VPN running […]
New wave of VPN login attempts targets Palo Alto GlobalProtect portals
A campaign has been observed targeting Palo Alto GlobalProtect portals with login attempts and launching scanning activity against SonicWall SonicOS API endpoints. The activity started on December 2nd and originated from more than 7,000 IP addresses from infrastructure operated by the German IT company 3xK GmbH, which runs its own BGP network (AS200373) and operates as […]
Marquis data breach impacts over 74 US banks, credit unions
Financial software provider Marquis Software Solutions is warning that it suffered a data breach that impacted dozens of banks and credit unions across the US. Marquis Software Solutions provides data analytics, CRM tools, compliance reporting, and digital marketing services to over 700 banks, credit unions, and mortgage lenders. In data breach notifications filed with US […]
New SonicWall SonicOS flaw allows hackers to crash firewalls
American cybersecurity company SonicWall urged customers today to patch a high-severity SonicOS SSLVPN security flaw that can allow attackers to crash vulnerable firewalls. Tracked as CVE-2025-40601, this denial-of-service vulnerability is caused by a stack-based buffer overflow impacting Gen8 and Gen7 (hardware and virtual) firewalls. “A Stack-based buffer overflow vulnerability in the SonicOS SSLVPN service allows a […]
SonicWall says state-sponsored hackers behind September security breach
SonicWall’s investigation into the September security breach that exposed customers’ firewall configuration backup files concludes that state-sponsored hackers were behind the attack. The network security company says that incident responders from Mandiant confirmed that the malicious activity had no impact on SonicWall’s products, firmware, systems, tools, source code, or customer networks. “The Mandiant investigation is now […]
SonicWall: Firewall configs stolen for all cloud backup customers
SonicWall has confirmed that all customers that used the company’s cloud backup service are affected by the security breach last month. Previously, the vendor stated that the incident “exposed firewall configuration backup files stored in certain MySonicWall accounts,” without sharing additional details. MySonicWall is an online customer portal used for managing product access, licensing, registration, […]
Akira ransomware breaching MFA-protected SonicWall VPN accounts
Ongoing Akira ransomware attacks targeting SonicWall SSL VPN devices continue to evolve, with the threat actors found to be successfully logging in despite OTP MFA being enabled on accounts. Researchers suspect that this may be achieved through the use of previously stolen OTP seeds, although the exact method remains unconfirmed. In July, GeekFeed reported that the Akira […]
SonicWall releases SMA100 firmware update to wipe rootkit malware
SonicWall has released a firmware update that can help customers remove rootkit malware deployed in attacks targeting SMA 100 series devices. “SonicWall SMA 100 10.2.2.2-92sv build has been released with additional file checking, providing the capability to remove known rootkit malware present on the SMA devices,” the company said in a Monday advisory. “SonicWall strongly recommends […]
SonicWall warns customers to reset credentials after breach
SonicWall warned customers today to reset credentials after their firewall configuration backup files were exposed in a security breach that impacted MySonicWall accounts. After detecting the incident, SonicWall has cut off the attackers’ access to its systems and has been collaborating with cybersecurity and law enforcement agencies to investigate the attack’s impact. “As part of […]