Latest cybersecurity reporting from selected sources.

Vendor Details Mitigations, Promises Patched PAN-OS Software in Coming WeeksPalo Alto Networks warned that a critical vulnerability in the PAN-OS software that runs its firewalls is being actively exploited in the wild by attackers. The vendor detailed temporary mitigations and promised to release updated software to fully patch the flaw later this month.

The Cybersecurity and Infrastructure Security Agency (CISA) has ordered federal agencies to patch a maximum-severity vulnerability, CVE-2026-20131, in Cisco Secure Firewall Management Center (FMC) by Sunday, March 22. [...]

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.…

Two of the 48 Cisco vulnerabilities, affecting Secure Firewall Management Center, are maximum-severity flaws

Cisco has released security updates to patch two maximum-severity vulnerabilities in its Secure Firewall Management Center (FMC) software. [...]

Newly disclosed vulnerability already being abused, users urged to lock down exposed firewalls WatchGuard is in emergency patch mode after confirming that a critical remote code execution flaw in its Firebox firewalls is under active attack.…

WatchGuard has warned customers to patch a critical, actively exploited remote code execution (RCE) vulnerability in its Firebox 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. [...]

CISA has ordered U.S. government agencies to secure their systems within a week against another vulnerability in Fortinet's FortiWeb web application firewall, which was exploited in zero-day attacks. [...]

CISA has ordered federal agencies to patch an actively exploited vulnerability in WatchGuard Firebox firewalls, which allows attackers to gain remote code execution on compromised devices. [...]

CISA gives feds 24 hours to patch, NCSC urges rapid action as flaws linked to ArcaneDoor spies Cybersecurity agencies on both sides of the Atlantic are sounding the alarm over Cisco firewall vulnerabilities that are being exploited by an "advanced threat actor."…

Cisco is urging customers to patch two security flaws impacting the VPN web server of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software, which it said have been exploited in the wild

Cisco Secure Firewall Management Centers Connected to RADIUS Left VulnerableNetworking equipment giant Cisco warned firewall customers to patch after discovering a maximum-severity vulnerability that could allow unauthenticated hackers to commandeer the server. The flaw rates a maximum score of 10 on the CVSS system.

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

Sophos and SonicWall have alerted users of critical security flaws in Sophos Firewall and Secure Mobile Access (SMA) 100 Series appliances that could be exploited to achieve remote code execution.  The two vulnerabilities impacting Sophos Firewall are listed below - CVE-2025-6704 (CVSS score: 9.8) - An arbitrary file writing vulnerability in the Secure PDF eXchange (SPX) feature can lead

The authentication bypass vulnerability in the OS for the company's firewall devices is under increasing attack and being chained with other bugs, making it imperative for organizations to mitigate the issue ASAP.

If you want to avoid urgent patches, stop exposing management consoles to the public internet A flaw patched last week by Palo Alto Networks is now under active attack and, when chained with two older vulnerabilities, allows attackers to gain root access to affected systems.…

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.

Also: Google Fixes YouTube Vulnerabilities That Could Have Exposed User EmailsThis week: Microsoft, Ivanti and Google release fixes for critical vulnerabilities and urge priority patching; Lee Enterprises confirms a cyberattack disrupted newspaper operations; and thousands of KerioControl Firewalls exposed to critical remote code execution flaws.

Unauthenticated Attackers Using Malicious Packet to Crash Devices' PAN-OS SoftwareSecurity giant Palo Alto Networks is pushing updates to fix a denial-of-service vulnerability in its PAN-OS device software that unauthenticated, remote attackers have been actively exploiting. The flaw can be triggered by sending firewalls "a malicious packet," which will crash the devices.