CVE‑2025‑59287: Understanding the WSUS Remote Code Execution Vulnerability and Protecting Your Organisation

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CVE‑2025‑59287: Understanding the WSUS Remote Code Execution Vulnerability and Protecting Your Organisation
By Maciej

Introduction In October 2025 a critical remote‑code‑execution (RCE) bug in Windows Server Update Services (WSUS) shook the security community. The flaw, tracked as CVE‑2025‑59287, resides in WSUS’s handling of encrypted AuthorizationCookie data. An unauthenticated attacker can send a specially crafted SOAP request and trigger unsafe deserialization in the WSUS service, leading to arbitrary code execution with […]

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Privacy-Focused Web Browsers: Firefox, LibreWolf, Tor & Focus
By Maciej

As part of our ongoing series on tools that protect your digital privacy and security, this edition focuses on web browsers—your gateway to the internet. While most browsers prioritize speed and convenience, few are designed with privacy as a core principle. Fortunately, several alternatives offer enhanced protection against tracking, fingerprinting, and surveillance. In this article, […]

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Privacy in Your Browser: Essential Extensions
By Maciej

This article continues our series on practical tools that enhance digital privacy and security – both in the workplace and at home. Today, we turn our attention to browser extensions: lightweight add-ons that can significantly reduce online tracking, improve browsing performance, and give users more control over their data. We’ll explore four standout tools: uBlock […]

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Code Injection Attacks: Learning from the Latest ASP.NET Vulnerability
By Maciej

Our team of cybersecurity analysts and engineers here at Karacena recently went over a situation involving a code injection vulnerability within applications coded using ASP.NET. The publicly disclosed vulnerability earlier this year has been exploited in the wild already by attackers. It allows attackers to remotely execute malicious code, putting company systems, data, and operations […]

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Maciej

Cybersecurity consultant with extensive experience in building and operating Security Operations Centers, incident response, and threat hunting. Skilled in SIEM and SOAR implementation, security architecture design, and development of playbooks and procedures aligned with best practices. Experienced in leading and training SOC teams (L1/L2) and fine-tuning detection capabilities across endpoints, networks, and cloud platforms. Proficient in Microsoft Security Suite, including Microsoft Defender for Endpoint, Defender for Office, and Defender for Cloud Apps.

Our knowledge, your security – a shield in the digital reality.

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