Stay updated on the latest in information security flaws. Explore news, insights, and analysis on vulnerabilities affecting digital safety.
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Background for this topic.
A flaw is a defect in software, hardware, system design, or configuration that causes unintended behavior. In security reporting, the term usually means a weakness that could violate confidentiality, integrity, or availability when reached through a particular interface, input, privilege, or operating condition. Not every flaw is exploitable, and exploitability depends on factors such as exposure, authentication requirements, affected versions, and available mitigations.
Flaws matter because they can create attack paths in applications, operating systems, devices, APIs, or administrative settings. Security teams assess their severity and exposure, prioritize remediation, apply patches or configuration changes, and use isolation or access controls when immediate fixes are unavailable. Code review, testing, vulnerability scanning, and monitoring can reveal flaws across the development and operational lifecycle. Reports should distinguish a confirmed vulnerability from a theoretical defect and provide enough technical detail to support validation without unnecessarily enabling exploitation.
Earlier this week, Microsoft patched a vulnerability that was flagged with the "highest ever" severity rating received by an ASP.NET Core security flaw. [...]
Threat actors exploited a recently patched remote code execution vulnerability (CVE-2025-20352) in older, unprotected Cisco networking devices to deploy a Linux rootkit and gain persistent access. [...]
CISA has warned that attackers are actively exploiting a maximum-severity vulnerability in Adobe Experience Manager to execute code on unpatched systems. [...]
U.S. cybersecurity company F5 disclosed that nation-state hackers breached its systems and stole undisclosed BIG-IP security vulnerabilities and source code. [...]
Today is Microsoft's October 2025 Patch Tuesday, which includes security updates for 172 flaws, including six zero-day vulnerabilities. Get patching! [...]
Oracle has issued an emergency security update over the weekend to patch another E-Business Suite (EBS) vulnerability that can be exploited remotely by unauthenticated attackers. [...]