firewall
Product showcase: LuLu reveals unauthorized outbound connections from Mac apps
LuLu is a free, open-source firewall for macOS that lets you control which apps are allowed to send data from your computer. macOS includes a built-in firewall, but it mainly …
New Cisco firewall malware can only be killed by pulling the plug
Suspected state-sponsored attackers are using a custom backdoor to persistently compromise Cisco security devices (firewalls), the US CISA and the UK National Cyber Security …
Progress Software fixes sneaky WAF bypass vulnerability (CVE-2026-21876)
Progress Software has fixed a slew of high-severity vulnerabilities in MOVEit WAF and LoadMaster, including a flaw (CVE-2026-21876) that may allow attackers to bypass firewall …
Cisco FMC flaw was exploited by Interlock weeks before patch (CVE-2026-20131)
A critical vulnerability (CVE-2026-20131) in Cisco Secure Firewall Management Center (FMC) that Cisco disclosed and patched in early March 2026 has been exploited as a …
Cisco warns of SD-WAN Manager exploitation, fixes 48 firewall vulnerabilities
Cisco has confirmed that two Catalyst SD-WAN Manager vulnerabilities (CVE-2026-20128 and CVE-2026-20122) patched in late February 2025 are being exploited by attackers. The …
IPFire ships its 200th core update with a new domain blocklist and kernel upgrade
Network firewall distribution IPFire released Core Update 200, marking the 200th incremental update to the 2.29 branch. The release bundles a kernel upgrade, a beta domain …
CISA orders US federal agencies to replace unsupported edge devices
The US Cybersecurity and Infrastructure Security Agency (CISA) issued a new binding operational directive aimed at reducing a long-standing cyber risk across federal networks: …
OPNsense 26.1 brings updates to open-source firewall management
OPNsense, the open-source firewall and network security platform, reached version 26.1, adding a range of updates affecting management, traffic visibility, automation …
Fortinet starts patching exploited FortiCloud SSO zero-day (CVE-2026-24858)
Fortinet has begun releasing FortiOS versions that fix CVE-2026-24858, a critical zero-day vulnerability that allowed attackers to log into targeted organizations’ …
Fully patched FortiGate firewalls are getting compromised via CVE-2025-59718?
CVE-2025-59718, a critical authentication bypass flaw that attackers exploited in December 2025 to compromise FortiGate appliances, appears to persist in newer, purportedly …
IPFire update brings new network and security features to firewall deployments
Security and operations teams often work with firewall platforms that require frequent tuning or upgrades to meet evolving network demands. IPFire has released its 2.29 Core …
Turning plain language into firewall rules
Firewall rules often begin as a sentence in someone’s head. A team needs access to an application. A service needs to be blocked after hours. Translating those ideas into …
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