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.
CVE-2025-43300 is the latest zero-day bug used in cyberattacks against "targeted individuals," which could signify spyware or nation-state hacking.
Russian state-backed hackers are exploiting a seven-year-old Cisco Smart Install vulnerability (CVE-2018-0171) in end-of-life devices, prompting warnings from the FBI and Cisco Talos
Apple has released security updates to address a security flaw impacting iOS, iPadOS, and macOS that it said has come under active exploitation in the wild
Attackers are wielding the sophisticated modular malware while exploiting CVE-2025-29824, a previously zero-day flaw in Windows Common Log File System (CLFS) that allows attackers to gain system-level privileges on compromised systems.