Latest cybersecurity reporting from selected sources.

Cybersecurity agencies in the U.S. and U.K. are warning about a custom malware called Firestarter persisting on Cisco Firepower and Secure Firewall devices running Adaptive Security Appliance (ASA) or Firepower Threat Defense (FTD) software. [...]

Investigators found the malware, dubbed Firestarter, on a federal agency's network in a campaign dating back to at least September 2025. The post US, UK agencies warn hackers were hiding on Cisco firewalls long after patches were applied appeared first on CyberScoop.

Security failures rarely arrive loudly. They slip in through trusted tools, half-fixed problems, and habits people stop questioning. This week’s recap shows that pattern clearly

The Anti-Malware Security and Brute-Force Firewall plugin for WordPress, installed on over 100,000 sites, has a vulnerability that allows subscribers to read any file on the server, potentially exposing private information. [...]

The U.K. National Cyber Security Centre (NCSC) has revealed that threat actors have exploited the recently disclosed security flaws impacting Cisco firewalls as part of zero-day attacks to deliver previously undocumented malware families like RayInitiator and LINE VIPER

CISA Issues Emergency Directive After Cisco Exploits Persist After RebootCISA issued an emergency directive Thursday after discovering an advanced hacking campaign exploiting two persistent zero-days in Cisco firewall gear - malware that survives system reboots and upgrades - forcing agencies to disconnect vulnerable devices by Friday.

Ever wonder what happens when attackers don’t break the rules—they just follow them better than we do? When systems work exactly as they’re built to, but that “by design” behavior quietly opens the door to risk? This week brings stories that make you stop and rethink what’s truly under control. It’s not always about a broken firewall or missed patch—it’s about the small choices, default settings

Hackers Targeted a PAN-OS Flaw Days After Its DisclosureA suspected Chinese hacking campaign that began in November is exploiting a vulnerability in Palo Alto firewalls to install a custom malware backdoor for espionage. UNC5325 activity aligns with the Chinese hacking strategy of targeting edge devices.

The US government has sanctioned Sichuan Silence and one of its employees for the mass compromise of firewalls which led to the deployment of malware and ransomware

PAN-PAN! Intruders inject web shell backdoors, crypto-coin miners, more Thousands of Palo Alto Networks firewalls were compromised by attackers exploiting two recently patched security bugs. The intruders were able to deploy web-accessible backdoors to remotely control the equipment as well as cryptocurrency miners and other malware.…

UK's National Cyber Security Centre (NCSC) has published an analysis of a Linux malware named "Pigmy Goat" created to backdoor Sophos XG firewall devices as part of recently disclosed attacks by Chinese threat actors. [...]

The threat actors behind the RedTail cryptocurrency mining malware have added a recently disclosed security flaw impacting Palo Alto Networks firewalls to its exploit arsenal

Don't get too comfortable: 'Line Dancer' malware may be targeting other vendors, too A previously unknown and "sophisticated" nation-state group compromised Cisco firewalls as early as November 2023 for espionage purposes — and possibly attacked network devices made by other vendors including Microsoft, according to warnings from the networking giant and three Western governments.…

WordPress users of miniOrange's Malware Scanner and Web Application Firewall plugins are being urged to delete them from their websites following the discovery of a critical security flaw

A new, financially motivated operation dubbed LABRAT has been observed weaponizing a now-patched critical flaw in GitLab as part of a cryptojacking and proxyjacking campaign

Hackers are performing widespread exploitation of a critical-severity command injection flaw in Zyxel networking devices, tracked as CVE-2023-28771, to install malware. [...]

A suspected China-nexus threat actor exploited a recently patched vulnerability in Fortinet FortiOS SSL-VPN as a zero-day in attacks targeting a European government entity and a managed service provider (MSP) located in Africa

Six malicious packages on PyPI, the Python Package Index, were found installing information-stealing and RAT (remote access trojan) malware while using Cloudflare Tunnel to bypass firewall restrictions for remote access. [...]

A new Go-based malware named 'Zerobot' has been spotted in mid-November using exploits for almost two dozen vulnerabilities in a variety of devices that include F5 BIG-IP, Zyxel firewalls, Totolink and D-Link routers, and Hikvision cameras. [...]

The CISA has seen a resurgence of the malware targeting a range of verticals and critical infrastructure organizations by exploiting RDP, firewall vulnerabilities.