The PHP security team has announced an emergency security release scheduled for October 21, 2026, at 14:00 UTC (10:00 AM Eastern), addressing two critical vulnerabilities, each rated CVSS 4.0 9.2.
Technical details, affected PHP versions, and patched releases have not yet been disclosed. The PHP team warned that patches could be released ahead of schedule if vulnerability details become public or evidence of active exploitation emerges.
Active exploitation is targeting SonicWall SMA1000 appliances through CVE-2026-83548 and CVE-2026-83549, a pre-authentication SSRF flaw and a post-authentication OS command-injection flaw that can be chained to reach unauthenticated remote code execution. Affected models are SMA 6210, SMA 7210 and SMA 8200v on 12.4.3-03453 or earlier, or 12.5.0-02835 or earlier; fixed builds are 12.4.3-03526 and 12.5.0-02952 or later.
Oracle released its August 2026 Critical Security Patch Update on August 18 with 943 new patches across its enterprise software portfolio, including 262 for Fusion Middleware, 120 for E-Business Suite, and 66 for Commerce. Covered products include WebLogic Server, PeopleSoft Enterprise PeopleTools, Oracle Internet Directory, Oracle Identity Manager, WebCenter, BI Publisher, Payments, Helidon, Hyperion, and Siebel Applications.
Microsoft’s August 11 Patch Tuesday addressed hundreds of vulnerabilities across Windows, Office, Azure, Exchange Server, SharePoint, .NET, Teams, and other products. Qualys ThreatPROTECT and CyberHub Podcast counted 421 fixes, while other supplied coverage reported lower totals, with the difference attributed to counting method or update scope.
SecurityWeek reported that Cisco released fixes for roughly two dozen vulnerabilities across its products, including critical issues in Catalyst SD-WAN, IOS XE and Secure Firewall Management Center.
For Catalyst SD-WAN, SecurityWeek and Secure ISS said Cisco identified CVE-2026-20303, CVE-2026-20304 and CVE-2026-20310 as critical vulnerabilities, and listed fixed releases 20.9.10, 20.12.8.1, 20.15.6, 20.18.4 and 26.1.2 by branch. The reporting also listed IOS XE fixes for CVE-2026-20272 and CVE-2026-20267, with fixed releases including 17.9.10, 17.12.8, 17.15.6, 17.18.4 or 17.18.4a, and 26.1.2.
N-able’s N-central RMM platform is under active exploitation through an authentication-bypass flaw, with Huntress reporting multiple affected organizations and observed follow-on activity including reconnaissance, process-list requests, and abuse of the Take Control remote-access feature on downstream hosts. N-central is a remote monitoring and management platform used to administer and remotely access systems across customer environments.
Security Affairs, Mallory.ai, and Field Effect reported that Broadcom released patches on July 29 for five VMware vulnerabilities affecting ESXi, vCenter, Workstation, and Fusion, including three rated critical.
They said the most severe issue, CVE-2026-59309, is a critical vCenter authentication bypass rated CVSS 9.8, and that Broadcom also fixed CVE-2026-59310, a critical directory traversal flaw in the Syslog Server component that can lead to remote code execution over the network. vCenter is VMware’s centralized management platform for ESXi hosts and virtual machines.