Leavar Michel

All posts by Leavar Michel

Leavar is a Cybersecurity Analyst at Barracuda. He's a security expert, working on our Blue Team within our Security Operations Center. Leavar supports our XDR service delivery and is highly skilled at analyzing security events to detect cyber threats, helping keep our partners and their customers protected.

Cybersecurity Threat Advisory
Cybersecurity Threat Advisory: Critical RCE Flaw in BeyondTrust

Cybersecurity Threat Advisory: Critical RCE Flaw in BeyondTrust

A critical pre-authentication remote code execution (RCE) vulnerability has been identified in BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA). If left unpatched, it may result in full system compromise, data loss, or service disruption. Review this Cybersecurity Threat...

/ February 10, 2026
Cybersecurity Threat Advisory
Cybersecurity Threat Advisory: Zero-day Cisco vulnerability

Cybersecurity Threat Advisory: Zero-day Cisco vulnerability

CVE‑2026‑20045 is a critical zero‑day vulnerability impacting multiple Cisco Unified Communications products and Webex Calling Dedicated Instances. Successful exploitation allows an unauthenticated attacker to achieve remote code execution. Continue reviewing this Cybersecurity Threat Advisory to learn how to mitigate your...

/ January 27, 2026
Cybersecurity Threat Advisory
Cybersecurity Threat Advisory: Critical n8n vulnerability

Cybersecurity Threat Advisory: Critical n8n vulnerability

A severe vulnerability, tracked as CVE-2025-68668 with a CVSS score of 9.9, was recently discovered in n8n, an open-source workflow automation platform. The flaw enables authenticated users with create or modify workflows permissions to execute arbitrary system commands on the...

/ January 7, 2026
Cybersecurity Threat Advisory
Cybersecurity Threat Advisory: Critical ArrayOS VPN flaw

Cybersecurity Threat Advisory: Critical ArrayOS VPN flaw

Attackers are exploiting a command injection vulnerability in ArrayOS AG VPN devices to plant PHP webshells and create rogue users. CISA has added this vulnerability to the Known Exploited Vulnerabilities (KEV) catalog. Review this Cybersecurity Threat Advisory to discover recommended...

/ December 10, 2025
Cybersecurity Threat Advisory
Cybersecurity Threat Advisory: Fluent Bit vulnerabilities

Cybersecurity Threat Advisory: Fluent Bit vulnerabilities

Five vulnerabilities have been identified in Fluent Bit. Upon a successful exploitation, attackers could bypass authentication, perform path traversal, execute remote code, or cause denial of service. Review this Cybersecurity Threat Advisory now to secure you or your clients’ infrastructure....

/ November 26, 2025
Cybersecurity Threat Advisory
Cybersecurity Threat Advisory: Critical Windows Kernel zero-day vulnerability

Cybersecurity Threat Advisory: Critical Windows Kernel zero-day vulnerability

CVE-2025-62215 is a Windows Kernel flaw that lets attackers escalate to SYSTEM privileges, persist, access data, and move laterally. Attackers are actively exploiting this zero-day in the wild. Review this Cybersecurity Threat Advisory for best practices and recommendations to mitigate...

/ November 14, 2025
Cybersecurity Threat Advisory
Cybersecurity Threat Advisory: RCE vulnerability in SolarWinds WHD

Cybersecurity Threat Advisory: RCE vulnerability in SolarWinds WHD

A critical remote code execution (RCE) vulnerability, CVE-2025-26399, has been identified in SolarWinds Web Help Desk (WHD) and remains exploitable despite previous fixes. The flaw allows unauthenticated attackers to execute arbitrary code on vulnerable servers, leading to a full system...

/ September 24, 2025
Cybersecurity Threat Advisory
Cybersecurity Threat Advisory: WinRAR zero-day exploited

Cybersecurity Threat Advisory: WinRAR zero-day exploited

A critical path traversal zero-day vulnerability — tracked as CVE‑2025‑8088 — has been identified in WinRAR and related components (Windows RAR, UnRAR.dll, and the portable UnRAR source code), and is currently being actively exploited. Review the details in this Cybersecurity...

/ August 12, 2025
Cybersecurity Threat Advisory
Cybersecurity Threat Advisory: Microsoft SharePoint zero-day vulnerability

Cybersecurity Threat Advisory: Microsoft SharePoint zero-day vulnerability

Attackers are actively exploiting CVE-2025-53770, a critical zero-day vulnerability in Microsoft SharePoint, to execute remote code without authentication. This flaw allows attackers to deploy persistent malware and potentially exfiltrate sensitive data from unpatched on-premises environments. Review the full details in...

/ July 22, 2025
Cybersecurity Threat Advisory
Cybersecurity Threat Advisory: Zero-day Chrome vulnerability

Cybersecurity Threat Advisory: Zero-day Chrome vulnerability

Google has patched a high-severity zero-day vulnerability, tracked as CVE-2025-6554 with a CVSS score of 8.1, in Chrome’s V8 engine that allows attackers to execute arbitrary code via a crafted HTML page. Review the details of this Cybersecurity Threat Advisory...

/ July 2, 2025