OpenSSL Memory Leak

Attackers are finding new mileage in familiar technology.

Today, I’m watching everything from Windows task abuse to OpenSSL memory leaks. Meanwhile, an alleged member of ShinyHunters is arrested. - Ken

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Here’s what you need to know:

Zero-Day Download

WatchGuard VPN Flaw Opens Door to Root Access 

WatchGuard patched a Fireware vulnerability that could allow a malicious VPN server to execute commands as root on a connected Firebox appliance.

CVE-2026-86131 impacts specific BOVPN over TLS client configurations, although WatchGuard says it has not observed exploitation in the wild.

Source: ChatGPT

My Take: If you’re using these appliances, the risk of root access should trigger a full review of potential attack paths. 

Patch affected Firebox appliances, verify VPN peers, and remove unnecessary BOVPN connections.

Star Blizzard Abuses Windows Tasks to Deploy Backdoor 

Microsoft says Russian-backed Star Blizzard is using Windows scheduled tasks to deploy CosmicPulse, affecting more than 100 organizations. 

RedFlick requires just one user interaction and uses legitimate Windows features to hide malicious activity. 

My Take: Reducing the attack to one user interaction means less friction and fewer opportunities for the attack chain to fail.

Monitor for unexpected scheduled tasks, LNK execution, PowerShell activity, and MSI installations that don’t match normal endpoint behavior.

OpenSSL Vulnerability Exposes Application Memory 

OpenSSL patched a high-severity flaw that can leak application memory during certain DTLS handshakes or crash an affected process.

CVE-2026-84782 affects several OpenSSL branches, but applications are only exposed when the vulnerable library is used for DTLS.

My Take: A vulnerable library doesn’t always mean the same level of risk everywhere. I’d prioritize systems where DTLS creates an actual exposure path instead of treating every OpenSSL finding the same.

Identify applications using affected OpenSSL versions, confirm DTLS usage, and verify the patched library is loaded after updating.

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Threat Tracker

ShinyHunters Suspect Arrested by Dutch Police

Dutch police arrested a 24-year-old man suspected of participating in ShinyHunters. 

The FBI says the group has compromised more than 140 organizations and collected at least $70 million in extortion payments, with victims exposed through third-party cloud environments.

Source: Unsplash

My Take: This is a good reason to pressure-test third-party breach scenarios. If a cloud provider is compromised, you should already know what data is exposed and what your response looks like.

Review vendor access, remove unnecessary permissions, and monitor third-party accounts for suspicious activity.

Proofpoint Shifts AI Security Focus to Intent 

At Proofpoint Protect 2026, security leaders emphasized that traditional access controls may not be enough for autonomous AI agents.

Agents can operate across sensitive data and applications while remaining within their assigned permissions.

My Take: Access controls tell us whether an AI agent can do something. As agents become more autonomous, we also need to determine whether they should be able to do something and when a human needs to step in.

Identify what your AI agents can access and require human approval for actions that could expose sensitive data or create significant business risk.

A cloned voice or convincing deepfake can turn a fraudulent identity into an entry point for account compromise.

Join eSecurity Planet and Specops on October 22, 2026, at 1:00 PM ET for From ‘Trust’ to ‘Verify’. This live webinar will examine how attackers exploit onboarding, password resets, and service desk calls, and how financial institutions can strengthen verification before granting access.

Security Tip of the Day

How Well Are You Protecting Windows Endpoints? 

Threat actors can abuse trusted Windows features like PowerShell to hide malicious activity within normal system operations.

Source: Unsplash

How to secure Windows endpoints:

Regularly review these controls to make sure Windows security keeps pace with changes across your environment.

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Meet Our Writer:

Ken Underhill

Ken Underhill is an award-winning cybersecurity professional, bestselling author, and seasoned IT professional. He holds a graduate degree in cybersecurity and information assurance from Western Governors University, bringing years of hands-on experience to the field.

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