Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

CVE-2026-76461: Active Exploitation of Cisco Secure Email Gateway Critical Zero-Day Vulnerability Immediate Mitigation Required

CVE-2026-76461 is a pre-authentication SQL injection vulnerability in the email parsing logic of Cisco Secure Email Gateway (AsyncOS). This vulnerability enables unauthenticated remote threat actors to execute arbitrary code as root by sending crafted, malicious emails. This grants threat actors full control over the operating system, allowing data exfiltration, email surveillance, persistent access, and potential network pivoting, all without user interaction or credentials.

CVE-2026-84869: ConnectWise ScreenConnect Client Vulnerability Critical Remote Session File Transfer Exploitation Risk

A critical security weakness (CVE-2026-84869) has been identified in the ConnectWise ScreenConnect client (prior to version 26.6.5), where missing authorization controls and improper privilege management allow file transfers and execution through active remote sessions without host confirmation.

Astra Just Raised the Bar for AI-Enabled Attacks. Here's What That Means for Defenders

OpenAI published its assessment of its newest GPT model, Astra, and found it to be the first of their models to reach a critical level of cybersecurity capability, meaning that given the right tools and access, it could autonomously exploit previously unknown vulnerabilities. As a result, OpenAI has restricted Astra’s most advanced cybersecurity capabilities to trusted partners before a public rollout.

CVE-2026-86218: Active Exploitation of N-able N-central: Critical Pre-Auth Remote Code Execution (RCE) Vulnerability

A maximum-severity (CVSS 10.0) vulnerability CVE-2026-86218 has been discovered in N-able N-central prior to build 2026.3.1.14. This flaw allows unauthenticated attackers to execute arbitrary code on the N-central server before authentication enabling remote takeover of the platform. The vulnerability is classified as static code injection (consistent with CWE-96) in a public-facing application endpoint.

CrowdStrike Falcon Sensor Local Privilege Escalation Zero-Day (FalconFlank)

On September 3, 2026, a security researcher known as Nightmare Eclipse/Chaotic Eclipse publicly disclosed a zero-day dubbed ‘FalconFlank’ which abuses the Office malicious macro remediation workflow in CrowdStrike Falcon Sensor. The attack leverages a time-of-check to time-of-use (TOCTOU) race condition, allowing an attacker with code execution on a vulnerable system to hijack the Falcon macro remediation routine. This results in DLL side-loading and execution as NT AUTHORITY\SYSTEM.

The IT Asset Inventory Problem: Do You Know What's Actually on Your Network?

Ask a room of security leaders whether they have a complete, current inventory of everything on their network, and watch how long it takes anyone to say yes. Effort is rarely the issue. Modern environments change faster than any single record can keep up with. A configuration management database (CMDB) shows what was documented. An endpoint tool shows where its agent is installed. A scanner shows what it was told to scan.

A Practical Guide to Attack Surface Management

Attack surface management (ASM) is the discipline of continuously discovering, inventorying, assessing, and prioritizing every asset, control, and exposure across your environment. It gives you an always-on picture of what you actually have, rather than a point-in-time scan. Done right, it answers the three questions every security leader is really asking: What do I have? Where am I exposed? What do I fix first?

The Trillion-Dollar AI Bet Needs a Security Strategy

AI agents have now proven, in the real world, that autonomy without a security model is a liability. At Arctic Wolf, we’ve spent years watching that same lesson play out with cloud migrations, remote work, and every other rush of new technology, and this is that pattern showing up again, just faster.