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.
Malicious attachments that exploit an RCE flaw from 2017 are propagating Agent Tesla via socially engineered emails and an evasive infection method.
Attackers can chain the vulnerabilities to gain full remote code execution.
The most critical of the bugs gives attackers privileged access to the local Windows system, paving the way for unauthenticated RCE and installing backdoors.
Although the unauthenticated Java deserialization flaw has been known since 2015, GWT apps remain vulnerable to malicious server-side code execution, new research says.
Zoom's Vulnerability Impact Scoring System calculates the impact of a vulnerability to assign a cash payout for bugs, leading hackers to prioritize more severe flaws. Can it do the same for companies?
Attackers can spoof millions of email addresses to create targeted phishing attacks using flaws in Microsoft, GTX, and Cisco Secure Email Gateway servers.