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.
AWS Researchers Find an Interlock Server Laden With ToolsRansomware hackers exploited a flaw with a maximum vulnerability score in Cisco firewall management software weeks before the networking giant disclosed the vulnerability in early March. The group has focused extensively on critical infrastructure sectors in North America and Europe.
Researchers Detail Prompt Injection, API and Redirect FlawsOasis Security researchers found three bugs in Claude that attackers can chain to steal user chat data without malware or phishing. The "Claudy Day" attack links hidden prompt injection, Anthropic's Files API and an open redirect. Anthropic has fixed the core flaw.
Internet-Connected Remote Access Tools Operate at UEFI LevelA flood of lost-cost devices for remote IP control of servers or human-machine interfaces has roused a concomitant wave of security warnings about their security defects. Firmware security company Eclypsium probed devices made by four KVM vendors, discovering nine vulnerabilities.
Individual Vulnerability Severity Not Always a Good Measure of Risk ExposureA mainstay of IT security programs across the world, the Common Vulnerability Scoring System, may have terminal flaws when applied to the mirror universe of operational technology - a place where ordinary assumptions about risk don't apply.
Directory Traversal Flaw Found in Companies HouseThe British government's company register service temporarily deactivated its online filing service after someone found a serious vulnerability that allowed people to access directors' sensitive personal data and potentially even amend companies' records or file bogus accounts on their behalf.