Zero-Day
Cisco fixes SD-WAN vManage flaw exploited in zero-day attacks
Cisco has released security updates to address a vulnerability in the Catalyst SD-WAN Manager, tracked as CVE-2026-20262, that was exploited in attacks to escalate to root privileges. Formerly known as SD-WAN vManage, this network management software allows admins to manage up to 6,000 SD-WAN devices from a single dashboard. The now-patched zero-day security flaw affects all deployment […]
Oracle mitigates PeopleSoft zero-day exploited in data theft attacks
Oracle is warning about a critical PeopleSoft Suite zero-day vulnerability tracked as CVE-2026-35273 that allows unauthenticated remote code execution, with the flaw actively exploited in ShinyHunter data theft attacks. The flaw is within Oracle PeopleSoft PeopleTools and has a CVSS base score of 9.8. “This Security Alert addresses vulnerability CVE-2026-35273 in Oracle PeopleSoft PeopleTools. Oracle PeopleSoft Enterprise Applications […]
Microsoft patches Exchange Server zero-day exploited in attacks
Microsoft has patched an actively exploited Exchange Server vulnerability that allows threat actors to execute arbitrary JavaScript code in cross-site scripting (XSS) attacks targeting Outlook Web Access users. This high-severity spoofing vulnerability (CVE-2026-42897) affects Exchange Server 2016, Exchange Server 2019, and Exchange Server Subscription Edition (SE) software and can be exploited by remote attackers with […]
Microsoft patches YellowKey, GreenPlasma, MiniPlasma zero-days
On Tuesday, Microsoft patched two zero-day vulnerabilities that let attackers gain SYSTEM privileges on fully patched Windows systems, and a third one that grants access to BitLocker-protected drives. All three security flaws were disclosed last month by a security researcher using the “Nightmare Eclipse” handle in protest over how the Microsoft Security Response Center (MSRC) […]
Microsoft Defender ‘RoguePlanet’ zero-day grants SYSTEM privileges
A security researcher has released a new Microsoft Defender zero-day exploit named “RoguePlanet” just hours after Microsoft fixed two previously disclosed flaws during June 2026 Patch Tuesday. The researcher, known as Nightmare Eclipse, says the new vulnerability affects fully patched Windows 10 and Windows 11 devices, allowing attackers to spawn a command prompt with SYSTEM privileges via […]
Google patches new Chrome zero-day flaw exploited in the wild
Google has released emergency updates to patch another Chrome zero-day vulnerability that has been exploited in the wild, the fifth such flaw patched since the start of the year. “Google is aware that an exploit for CVE-2026-11645 exists in the wild,” the company said in a Monday security advisory. The company fixed the zero-day for users […]
Check Point links VPN zero-day attacks to Qilin ransomware gang
Israeli cybersecurity company Check Point has released security updates to patch a critical flaw affecting Remote Access VPN and Mobile Access deployments, which was exploited in zero-day attacks. Tracked as CVE-2026-50751, this vulnerability can be exploited by unauthenticated, remote attackers to bypass authentication on targeted Mobile Access / SSL VPNs, Remote Access VPNs, or Spark firewalls […]
Acer working to patch max severity zero-days in Wave 7 routers
Acer confirmed that it’s working to address two maximum-severity zero-day vulnerabilities affecting its Wave 7 mesh routers. According to a Friday security advisory, the two security flaws were reported by security researcher Gergo Pap and affect Wave 7 routers running firmware version T7c_GBL_1.01.000055 or earlier. The first zero-day, a broken access control vulnerability tracked as CVE-2026-49200, can […]
VS Code zero-day lets hackers steal GitHub tokens in one click
A security researcher has released exploit code for a Visual Studio Code (VS Code) zero-day vulnerability that allows attackers to steal GitHub authentication tokens by tricking users into clicking a link. Microsoft classifies a software flaw as a zero-day if it is publicly disclosed and/or actively exploited with no official patch currently available. As researcher Ammar Askar explained in a blog […]
Google fixes one actively exploited Android zero-day, 124 flaws
Google has released the June 2026 Android security patches to address 124 vulnerabilities, including one zero-day flaw exploited in targeted attacks. Local attackers can exploit the actively abused high-severity Android Framework vulnerability (tracked as CVE-2025-48595) to gain code execution and escalate privileges on devices running Android 14 or later. “There are indications that CVE-2025-48595 may […]