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.
The U.S. Cybersecurity and Infrastructure Security Agency (CISA), along with the Coast Guard Cyber Command (CGCYBER), on Thursday released a joint advisory warning of continued attempts on the part of threat actors to exploit the Log4Shell flaw in VMware Horizon servers to breach target networks
The APT is pairing a known Microsoft flaw with a malicious document to load malware that nabs credentials from Chrome, Firefox and Edge browsers.
Bugs potentially useful for rogue insiders, admin account hijackers Cisco has alerted customers to four vulnerabilities in its products, including a high-severity flaw in its email and web security appliances. …
MEGA has released a security update to address a set of severe vulnerabilities that could have exposed user data, even if the data had been stored in encrypted form. [...]
The Computer Emergency Response Team of Ukraine (CERT-UA) has cautioned of a new set of spear-phishing attacks exploiting the "Follina" flaw in the Windows operating system to deploy password-stealing malware
Culture of ‘insecure-by-design’ security is cited in discovery of bug-riddled operational technology devices.
QNAP has warned customers today that many of its Network Attached Storage (NAS) devices are vulnerable to attacks that would exploit a three-year-old critical PHP vulnerability allowing remote code execution. [...]
Deep-dive study unearthed security flaws that could allow remote code execution, file manipulation, and malicious firmware uploads, among other badness.
A security report has been published on a set of 56 vulnerabilities that are collectively called Icefall and affect operational technology (OT) equipment used in various critical infrastructure environments. [...]
Fixed in 2013, reinstated in 2016, exploited in the wild this year A security flaw in Apple's Safari web browser that was patched nine years ago was exploited in the wild again some months ago – a perfect example of a "zombie" vulnerability.…
Nearly 60 holes found affecting 'more than 30,000' machines worldwide Fifty-six vulnerabilities – some deemed critical – have been found in industrial operational technology (OT) systems from ten global manufacturers including Honeywell, Ericsson, Motorola, and Siemens, putting more than 30,000 devices worldwide at risk, according to the US government's CISA and private security researchers. …
A security flaw in Apple Safari that was exploited in the wild earlier this year was originally fixed in 2013 and reintroduced in December 2016, according to a new report from Google Project Zero