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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.

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Microsoft fixed RoguePlanet (CVE-2026-50656), a Defender flaw allowing local attackers to gain higher privileges through the Malware Protection Engine. Microsoft released security updates for RoguePlanet, a vulnerability tracked as CVE-2026-50656 (CVSS score of 7.8) affecting the Malware Protection Engine used by Defender. The Microsoft Malware Protection Engine (mpengine.dll) powers Defender’s malware scanning, detection, and removal […]

More from Security Affairs 9 Jul 2026, 10:17 p.m. Theme · 12 stories CVE-2026-50656 CVE Fixed Flaw Malware Microsoft Vulnerability

Ubiquiti patched seven UniFi OS flaws, including critical CVE-2026-50746, which allows command injection in UniFi Connect Application. Ubiquiti released security updates for seven critical UniFi OS vulnerabilities, including a maximum-severity flaw, tracked as CVE-2026-50746 (CVSS score of 10.0), enabling command injection attacks. The issue affects UniFi Connect Application versions 3.4.16 and earlier, a platform used […]

More from Security Affairs 9 Jul 2026, 8:20 a.m. Incident · 5 stories CVE-2026-50746 Critical Vulnerability CVE Flaw Patch Privilege Escalation Ubiquiti Vulnerability

Attackers are exploiting a critical Gitea flaw (CVE-2026-20896) that bypasses authentication with a single HTTP header, exposing repositories and sensitive data. Sysdig researchers warn that attackers are actively exploiting a critical authentication bypass flaw, tracked as CVE-2026-20896 (CVSS score of 9.8), which affects Gitea official Docker images before version 1.26.3. “CVE-2026-20896 exploited 13 days after […]

More from Security Affairs 8 Jul 2026, 9:16 a.m. Incident · 4 stories CVE-2026-20896 Authentication Bypass CVE Docker Flaw Research Virtualisation

CERT/CC warns an unpatched backdoor in several Tenda routers lets attackers bypass login and gain full admin access with a hidden password. CERT/CC published an alert documenting an undocumented authentication backdoor in multiple Tenda firmware versions, tracked as CVE-2026-11405. The flaw gives anyone who knows the right password full administrative access to the device’s web […]

More from Security Affairs 7 Jul 2026, 9:45 p.m. Incident · 5 stories CVE-2026-11405 Authentication Backdoor Bypass CVE Firmware Flaw Patch Routers Warning

Attackers are exploiting the critical Adobe ColdFusion flaw CVE-2026-48282, which allows remote code execution on unpatched servers. Attackers have started exploiting CVE-2026-48282, a maximum-severity vulnerability in Adobe ColdFusion. The flaw is a path traversal issue that could result in arbitrary code execution without authentication. It affects ColdFusion 2025.9, 2023.20, and earlier versions, allowing remote attackers […]

More from Security Affairs 7 Jul 2026, 7:53 a.m. Incident · 3 stories Actively exploited CVE-2026-48282 Adobe Authentication CVE Flaw Remote Code Execution Vulnerability

Bad Epoll (CVE-2026-46242) lets local attackers gain root on Linux and Android. The flaw was missed by AI but found by a security researcher. A newly disclosed Linux kernel vulnerability, named Bad Epoll (CVE-2026-46242), allows a local attacker with no special privileges to gain full root access on affected Linux systems and Android devices. Security updates are […]

More from Security Affairs 6 Jul 2026, 8:24 p.m. Incident · 2 stories CVE-2026-46242 Android Artificial Intelligence CVE Disclosure Flaw Linux Root Access Vulnerability