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Vulnerabilities are flaws attackers can exploit to access systems or data; timely patching, isolation, and least privilege reduce the impact.

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A vulnerability is a weakness in a system’s design, code, configuration, or operating process that could allow an attacker to violate a security requirement. It may affect software, hardware, networks, cloud services, or exposed interfaces, and is not automatically exploitable: practical risk depends on factors such as exposure, required privileges, available attack paths, and existing controls. Outcomes can include unauthorized access, information disclosure, code execution, or disruption of service.

Effective vulnerability management combines accurate asset inventory with code review, security testing, scanning, and trusted vulnerability intelligence. Organizations should prioritize weaknesses affecting reachable, business-critical systems—especially when exploitation is known or requires little access—then patch or otherwise mitigate them and verify the fix. Where patching is delayed, controls such as disabling an exposed feature, restricting network access, or strengthening authentication can reduce the attack surface. Records should preserve affected versions, risk decisions, remediation owners, and validation results.

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U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Fortinet FortiSandbox and Microsoft SharePoint flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added Fortinet FortiSandbox and Microsoft SharePoint flaws to its Known Exploited Vulnerabilities (KEV) catalog. This week, Microsoft’s July 2026 Patch Tuesday addressed the SharePoint remote code execution bug […]

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 […]

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 […]

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds SonicWall and Microsoft 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: This week, SonicWall confirmed the active exploitation of two zero-day vulnerabilities […]

SonicWall warns of active attacks exploiting two SMA 1000 zero-days, including a flaw enabling arbitrary command execution. SonicWall confirmed the active exploitation of two zero-day vulnerabilities affecting Secure Mobile Access (SMA) 1000 appliances. The vulnerabilities were internally discovered and reported by Adam Babis of the company’s PSIRT. The company investigated multiple incidents indicating these vulnerabilities […]

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 […]

Australia warns of a global campaign exploiting CMS flaws to deploy webshells on WordPress, Joomla, and other websites. Australia’s Signals Directorate has issued an alert about a large-scale exploitation campaign actively targeting content management systems (CMS) worldwide, with many small and medium-sized Australian businesses already hit. Attackers are scanning websites for known vulnerabilities, deploying webshells […]

A new round of the weekly Security Affairs newsletter has arrived! Every week, the best security articles from Security Affairs are free in your email box. Enjoy a new round of the weekly SecurityAffairs newsletter, including the international press. U.S. CISA adds iCagenda and Balbooa Forms flaws to its Known Exploited Vulnerabilities catalog Critical U-Boot […]

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds iCagenda and Balbooa Forms flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added iCagenda and Balbooa Forms flaws to its Known Exploited Vulnerabilities (KEV) catalog. The flaws added to the catalog are: iCagenda is an open-source event management extension for Joomla. […]

Binarly found six U-Boot flaws, including two that enable code execution during boot image verification, impacting 50+ releases. Binarly’s research team has found six vulnerabilities in U-Boot, the open-source bootloader that runs on home routers, smart cameras, server management controllers, and a large portion of the embedded hardware that powers the internet. All six are […]

Zimbra addressed a critical stored XSS vulnerability in its Classic Web Client that lets malicious emails execute code when opened. Zimbra has released version 10.1.19 to fix a critical stored XSS vulnerability in its Classic Web Client, which is widely used to access Zimbra Collaboration. The flaw, which has not yet received a CVE ID, […]

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 […]

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Adobe ColdFusion, Joomlack Page Builder, Langflow, and JoomShaper SP Page Builder flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added [1, 2] Adobe ColdFusion, Joomlack Page Builder, Langflow, and JoomShaper SP Page Builder flaws to its Known Exploited Vulnerabilities (KEV) catalog. […]

CISA is using Anthropic’s Mythos AI to scan federal code for vulnerabilities, aiming to find flaws before hackers and foreign intelligence services. Three sources familiar with the matter told Reuters that CISA, the U.S. government’s civilian cyber defense agency, is running Anthropic’s Mythos AI model against federal code repositories to find vulnerabilities before foreign intelligence […]

Januscape: A 16-year-old Linux KVM flaw lets cloud VM tenants crash hosts and potentially escape guests. It affects Intel and AMD systems. Security researcher Hyunwoo Kim has published details of a use-after-free vulnerability in Linux’s KVM hypervisor that allows code running inside a guest virtual machine to corrupt host kernel memory. The bug, tracked as […]

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 […]

runZero found 7 flaws in FatFs, a filesystem used in IoT and embedded devices. Bugs can cause memory corruption, crashes, or data leaks via crafted storage. Cybersecurity firm runZero has disclosed seven vulnerabilities in FatFs, a compact open-source library that lets embedded devices read and write FAT and exFAT formatted storage, the same formats used […]

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 […]

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 […]

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