Latest cybersecurity reporting from selected sources.

Interlock's post-exploit toolkit exposed Ransomware criminals exploited CVE-2026-20131, a maximum-severity bug in Cisco Secure Firewall Management Center software, as a zero-day vulnerability more than a month before Cisco patched the hole, according to Amazon security boss CJ Moses.…

The Interlock ransomware gang has been exploiting a maximum severity remote code execution (RCE) vulnerability in Cisco's Secure Firewall Management Center (FMC) software in zero-day attacks since late January. [...]

Amazon Threat Intelligence is warning of an active Interlock ransomware campaign that's exploiting a recently disclosed critical security flaw in Cisco Secure Firewall Management Center (FMC) Software

Palo Alto Networks has released security updates for a high-severity security flaw impacting GlobalProtect Gateway and Portal, for which it said there exists a proof-of-concept (PoC) exploit

From unpatched cars to hijacked clouds, this week’s Threatsday headlines remind us of one thing — no corner of technology is safe. Attackers are scanning firewalls for critical flaws, bending vulnerable SQL servers into powerful command centers, and even finding ways to poison Chrome’s settings to sneak in malicious extensions

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

Cybersecurity today moves at the pace of global politics. A single breach can ripple across supply chains, turn a software flaw into leverage, or shift who holds the upper hand. For leaders, this means defense isn’t just a matter of firewalls and patches—it’s about strategy. The strongest organizations aren’t the ones with the most tools, but the ones that see how cyber risks connect to business

Malicious actors have been observed exploiting a now-patched critical security flaw impacting Erlang/Open Telecom Platform (OTP) SSH as early as beginning of May 2025, with about 70% of detections originating from firewalls protecting operational technology (OT) networks

A new ransomware operator named 'Mora_001' is exploiting two Fortinet vulnerabilities to gain unauthorized access to firewall appliances and deploy a custom ransomware strain dubbed SuperBlack. [...]

Palo Alto Networks has observed exploit attempts chaining three vulnerabilities in its PAN-OS firewall appliances

Surge in Attack Attempts Spotted After Palo Alto Networks Details and Patches FlawAttackers have stepped up efforts to exploit a vulnerability in the software that runs Palo Alto Networks firewall appliances that could give them direct access to the underlying software. Unauthenticated hackers could use PHP scripts to bypass the PAN-OS management web interface.

An exhaustive evaluation of three firewall models from Palo Alto Networks has uncovered a host of known security flaws impacting the devices' firmware as well as misconfigured security features

Hackers are trying to exploit CVE-2024-52875, a critical CRLF injection vulnerability that leads to 1-click remote code execution (RCE) attacks in GFI KerioControl firewall product. [...]

Palo Alto Networks is warning that hackers are exploiting the CVE-2024-3393 denial of service vulnerability to disable firewall protections by forcing it to reboot. [...]

Also sanctions his employer – an outfit called Sichuan Silence linked to Ragnarok ransomware The US Departments of Treasury and Justice have named a Chinese business and one of its employees as the actors behind the 2020 exploit of a zero-day flaw in Sophos firewalls…

Firewall Vendor Warns Attackers Using Valid Credentials They Previously StoleAttackers wielding an emerging strain of ransomware called Helldown have been gaining a foothold in victims' networks by exploiting a previously unknown flaw in their Zyxel firewalls, security researchers warn. Zyxel has warned attackers may be using valid credentials they previously stole.

The new 'Helldown' ransomware operation is believed to target vulnerabilities in Zyxel firewalls to breach corporate networks, allowing them to steal data and encrypt devices. [...]

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

Two flaws discovered a year apart are ostensibly the same with slightly different exploit paths, exposing corporate networks to risk and potential intrusion.

Over 178,000 SonicWall firewalls exposed over the internet are exploitable to at least one of the two security flaws that could be potentially exploited to cause a denial-of-service (DoS) condition and remote code execution (RCE)