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.
Mandiant warned that Chinese espionage actor UNC5221 is actively exploiting a critical Ivanti vulnerability, which can lead to remote code execution
A critical authentication bypass flaw in CrushFTP is under active exploitation following a mishandled disclosure process
WP Ultimate CSV Importer flaws expose 20,000 websites to attacks enabling attackers to achieve full site compromise
The UK’s National Cyber Security Agency has called on Next.js users to patch CVE-2025-29927