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.
Over 15 million publicly facing services are susceptible to at least one of the 896 vulnerabilities listed in CISA's KEV (known exploitable vulnerabilities) catalog. [...]
A Russian hacking group tracked as TA473, aka 'Winter Vivern,' has been actively exploiting vulnerabilities in unpatched Zimbra endpoints since February 2023 to steal the emails of NATO officials, governments, military personnel, and diplomats. [...]
Multiple malware botnets actively target Cacti and Realtek vulnerabilities in campaigns detected between January and March 2023, spreading ShellBot and Moobot malware. [...]
Taiwanese hardware vendor QNAP warns customers to secure their Linux-powered network-attached storage (NAS) devices against a high-severity Sudo privilege escalation vulnerability. [...]
Cybersecurity researchers have discovered a fundamental security flaw in the design of the IEEE 802.11 WiFi protocol standard, allowing attackers to trick access points into leaking network frames in plaintext form. [...]