0day
Fortinet warns of critical FortiMail flaw exploited in zero-day attacks
Fortinet is warning customers of a critical FortiMail vulnerability, tracked as CVE-2026-104286, that is being actively exploited in zero-day attacks to execute unauthorized code or commands on vulnerable devices. The vulnerability is rated critical, with a CVSS score of 9.8, and affects the FortiMail management interface. “An Improper Limitation of a Pathname to a Restricted […]
DIVD says Zammad zero-days enabled AI-driven network breach
The Dutch Institute for Vulnerability Disclosure (DIVD) says that the breach of its network was possible by exploiting a chain of two zero-day vulnerabilities in the open-source Zammad ticketing system. Previously, the nonprofit organization of volunteer security researchers said the attack was “loud and very, very messy,” driven by an AI agent that moved autonomously […]
Cisco warns of new SD-WAN zero-day exploited in attacks
Cisco released security updates to address a critical zero-day in the Catalyst SD-WAN Manager (tracked as CVE-2026-76504) that attackers are actively exploiting to escalate to admin privileges. Formerly known as SD-WAN vManage, Catalyst SD-WAN Manager is network management software that lets admins monitor and manage up to 6,000 SD-WAN devices from a single dashboard. “In […]
Bitget hacked via zero-day in third-party security products
Cryptocurrency exchange Bitget revealed today that attackers who stole $387.5 million last week breached its systems after exploiting a zero-day flaw in third-party security products. According to Bitget, two separate investigations by blockchain security firm SlowMist and Google Cloud’s cyber-defense arm Mandiant said the threat actors accessed Bitget’s wallet environment after compromising two security appliances […]
Apple patches CoreGraphics zero-day flaw exploited in attacks
Apple released security updates to fix a zero-day vulnerability exploited in “extremely sophisticated” targeted attacks on iOS devices. Tracked as CVE-2026-86950, this flaw stems from an out-of-bounds write weakness discovered by Meta Product Security in CoreGraphics, a framework used for two-dimensional vector graphics, image rendering, and text drawing across iOS, macOS, iPadOS, watchOS, and tvOS. […]
Arista patches actively exploited VeloCloud Orchestrator zero-day
Arista Networks has released security patches for a zero-day flaw that is being actively exploited and affects VeloCloud Orchestrator (VCO) On-Prem deployments. VCO is a cloud-based centralized management platform that helps admins configure, monitor, and manage VeloCloud SD-WANs (Software-Defined Wide Area Networks) and associated edge devices. Tracked as CVE-2026-93952, this maximum-severity flaw stems from an […]
ShinyHunters claims FBI hack, data theft in PeopleSoft zero-day breach
The ShinyHunters extortion gang claims it breached FBI systems using a new Oracle PeopleSoft zero-day vulnerability, gaining access to internal services and stealing sensitive data on employees and job applicants. The threat actors told GeekFeed the vulnerability allows remote code execution and that they used it Monday night to access FBI systems before moving laterally […]
Check Point warns of Management Server zero-day exploited in attacks
Check Point Software released emergency hotfixes to address a critical Security Management Server vulnerability that could let attackers run arbitrary scripts. The Security Management Server is a central repository that stores and manages security policies, processes administrator changes, and collects system logs across enterprise networks. Tracked as CVE-2026-93616, this path traversal flaw lets unauthenticated threat […]
New Windows Defender zero-day blocks Microsoft antivirus updates
Over the weekend, security researcher Abdelhamid Naceri (also known as Nightmare Eclipse) released another Microsoft Defender zero-day exploit that blocks antivirus updates. Naceri named it BigDiskBuster and said it is similar to another Defender zero-day known as UnDefend, which he released in April and that allowed standard users to block definition updates. The security researcher added […]
Cisco warns of max severity ISE zero-day exploited in attacks
Cisco has released security updates to address a maximum-severity Identity Services Engine vulnerability that attackers are actively exploiting in the wild. Cisco ISE is a centralized policy platform that IT administrators use to manage endpoints, users, and device access to network resources, often while enforcing Zero Trust security models. The security flaw (tracked as CVE-2026-76460) […]