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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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U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds KNX Association KNX Protocol Connection Authorization Option 1 and Oracle flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added SonicWall and Microsoft flaws to its Known Exploited Vulnerabilities (KEV) catalog. The flaws added to the catalog are: The vulnerability CVE-2023-4346 (CVSS […]

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added a newly patched security flaw impacting Microsoft SharePoint Server to its Known Exploited Vulnerabilities (KEV) catalog, requiring Federal Civilian Executive Branch (FCEB) agencies to apply the fixes by July 19, 2026

Zoom warns of a critical Windows flaw, tracked as CVE-2026-53412, that could let attackers take over accounts without authentication. Zoom has fixed a critical Windows vulnerability, tracked as CVE-2026-53412 (CVSS score of 9.8) that could allow unauthenticated attackers to hijack user accounts. The flaw affects older versions of Workplace, the Windows VDI Client, and the […]

SonicWall warns that threat actors have been exploiting two SMA1000 vulnerabilities, tracked as CVE-2026-15409 and CVE-2026-15410, in zero-day attacks and urges customers to install the newly released security updates. [...]

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds a Cisco IOS flaw to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a Cisco IOS flaw, tracked as CVE-2008-4128, to its Known Exploited Vulnerabilities (KEV) catalog. Cisco IOS 12.4 running on Cisco 871 Integrated Services Routers contains multiple CSRF flaws in […]

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 […]

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 […]

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 […]

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 […]

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 […]

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 […]

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a high-severity flaw impacting Microsoft SharePoint Server to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation

CISA confirms BlueHammer (CVE-2026-33825) is now used in ransomware attacks to gain SYSTEM privileges through Microsoft Defender. BlueHammer, tracked as CVE-2026-33825, has moved from proof-of-concept noise to real ransomware attacks in the wild, the US CISA confirms. BlueHammer allows attackers to escalate privileges locally in Microsoft Defender. The vulnerability, along with two other zero-days dubbed […]

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds a SimpleHelp flaw to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a SimpleHelp flaw, tracked as CVE-2026-48558 (CVSS score v3.1 of 10.0), to its Known Exploited Vulnerabilities (KEV) catalog. CVE-2026-48558 is a critical authentication bypass vulnerability in SimpleHelp versions 5.5.15 and earlier and […]

An unknown threat actor has been observed exploiting a recently disclosed maximum-severity security flaw in SimpleHelp to deliver two previously unreported malware families, TaskWeaver and Djinn Stealer

Attackers are exploiting a critical flaw in Oracle E-Business Suite, CVE-2026-46817, that allows remote, unauthenticated attackers to take over Oracle Payments. A critical vulnerability in Oracle E-Business Suite, tracked as CVE-2026-46817, is being actively exploited in the wild, according to cybersecurity firm Defused Cyber. “CVE-2026-46817 (CVSS 9.8 unauth HTTP takeover in Oracle E-Business) is being […]

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