Firewall
WatchGuard warns of critical vulnerability in Firebox firewalls
WatchGuard has released security updates to address a remote code execution vulnerability impacting the company’s Firebox firewalls. Tracked as CVE-2025-9242, this critical security flaw is caused by an out-of-bounds write weakness that can allow attackers to execute malicious code remotely on vulnerable devices following successful exploitation. CVE-2025-9242 affects firewalls running Fireware OS 11.x (end of life), 12.x, […]
SonicWall urges admins to disable SSLVPN amid rising attacks
SonicWall has warned customers to disable SSLVPN services due to ransomware gangs potentially exploiting an unknown security vulnerability in SonicWall Gen 7 firewalls to breach networks over the past few weeks. The warning comes after Arctic Wolf Labs reported on Friday that it had observed multiple Akira ransomware attacks, likely using a SonicWall zero-day vulnerability, since July 15th. “The […]
SonicWall firewall devices hit in surge of Akira ransomware attacks
SonicWall firewall devices have been increasingly targeted since late July in a surge of Akira ransomware attacks, potentially exploiting a previously unknown security vulnerability, according to cybersecurity company Arctic Wolf. Akira emerged in March 2023 and quickly claimed many victims worldwide across various industries. Over the last two years, Akira has added over 300 organizations to its […]
Microsoft fixes bug behind incorrect Windows Firewall errors
Microsoft has resolved a known issue that triggers invalid Windows Firewall errors after rebooting Windows 11 24H2 systems with the June 2025 preview update installed. The bug has been fixed in the KB5062660 preview cumulative update for Windows 11 24H2, released on Tuesday, with the fix to be made generally available to all users who will install […]
Microsoft asks users to ignore Windows Firewall config errors
Microsoft asked customers this week to disregard incorrect Windows Firewall errors that appear after rebooting their systems following the installation of the June 2025 preview update. These warnings are logged in the Event Viewer as ‘Event 2042’ for Windows Firewall with Advanced Security, with a ‘Config Read Failed’ warning and a ‘More data is available’ message. […]
Fortinet: Hackers retain access to patched FortiGate VPNs using symlinks
Fortinet warns that threat actors use a post-exploitation technique that helps them maintain read-only access to previously compromised FortiGate VPN devices even after the original attack vector was patched. Earlier this week, Fortinet began sending emails to customers warning that their FortiGate/FortiOS devices were compromised based on telemetry received from FortiGuard devices. These emails were […]
Palo Alto Networks tags new firewall bug as exploited in attacks
Palo Alto Networks warns that a file read vulnerability (CVE-2025-0111) is now being chained in attacks with two other flaws (CVE-2025-0108 with CVE-2024-9474) to breach PAN-OS firewalls in active attacks. The vendor first disclosed the authentication bypass vulnerability tracked as CVE-2025-0108 on February 12, 2025, releasing patches to fix the vulnerability. That same day, Assetnote […]
SonicWall firewall bug targeted in attacks after PoC exploit release
Attackers are now targeting an authentication bypass vulnerability affecting SonicWall firewalls shortly after the release of proof-of-concept (PoC) exploit code. This security flaw (CVE-2024-53704), tagged by CISA as critical severity and found in the SSLVPN authentication mechanism, impacts SonicOS versions 7.1.x (up to 7.1.1-7058), 7.1.2-7019, and 8.0.0-8035, used by multiple models of Gen 6 and […]
Over 12,000 KerioControl firewalls exposed to exploited RCE flaw
Over twelve thousand GFI KerioControl firewall instances are exposed to a critical remote code execution vulnerability tracked as CVE-2024-52875. KerioControl is a network security suite that small and medium-sized businesses use for VPNs, bandwidth management, reporting and monitoring, traffic filtering, AV protection, and intrusion prevention. The flaw in question was discovered in mid-December by security […]
Zyxel warns of bad signature update causing firewall boot loops
Zyxel is warning that a bad security signature update is causing critical errors for USG FLEX or ATP Series firewalls, including putting the device into a boot loop. “We’ve found an issue affecting a few devices that may cause reboot loops, ZySH daemon failures, or login access problems,” warns a new Zyxel advisory. “The system LED may also […]