On October 19, 2026, Cloudflare learned that the private keys of eight eMudhra intermediate certificates had been compromised. The certificates were widely trusted by browsers, operating systems and Cloudflare itself. Because the keys are weak, an attacker could forge a certificate for any domain and impersonate servers to intercept or mo…
Cisco published a September 2026 hardening release for Cisco Secure Firewall ASA, Secure Firewall Threat Defense (FTD) and Secure Firewall Management Center (FMC) software. It addresses multiple vulnerabilities found during an internal security review. Cisco rates the advisory Critical and states that two of the issues are known to be act…
Cisco disclosed a critical authentication bypass, CVE-2026-76504, in the API session-based authentication management of Cisco Catalyst SD-WAN Manager. An unauthenticated, remote attacker can send a crafted HTTP request and gain access to the API with the privileges of the admin user. Cisco has released software updates and states that no …
Cisco published a security advisory covering multiple vulnerabilities in the web-based management interface and API endpoints of Cisco License On-Prem, formerly Cisco Smart Software Manager On-Prem (SSM On-Prem). A remote attacker could exploit them to gain unauthorized access, access sensitive information, cause a denial of service (DoS)…
Cisco disclosed multiple critical vulnerabilities in the Next Generation OAM (NGOAM) feature of Cisco NX-OS Software, affecting Cisco Nexus 3000 Series and Nexus 9000 Series switches. An unauthenticated, remote attacker could execute arbitrary code with root privileges or cause a denial of service (DoS) on an affected device. The flaws ar…
Cisco disclosed a critical vulnerability, CVE-2026-76465, in the MPLS Operation, Administration, and Maintenance (OAM) feature of Cisco NX-OS Software for Cisco Nexus 3000 Series and Nexus 9000 Series switches. An unauthenticated, remote attacker could execute arbitrary code with root privileges or cause a denial of service (DoS) on an af…
Cisco disclosed a critical vulnerability, CVE-2026-76471, in the NX-API feature of Cisco NX-OS Software. An unauthenticated, remote attacker could use it to execute arbitrary code with root privileges or to cause a denial of service on an affected device. Cisco rates the Security Impact as Critical. Software updates are available and no w…
Cisco published a security hardening release for Cisco Secure Email Gateway and Cisco Secure Email and Web Manager (September 2026), fixing multiple vulnerabilities found during an internal security review. Cisco states that two of them are known to be actively exploited. They are described in separate advisories as a SQL injection and an…
Huntress published a rapid-response advisory on two leaked critical PHP core vulnerabilities, CVE-2026-109618 and CVE-2026-109619, informally named "php2shell". Both are rated CVSS v4.0 9.2 and are publicly described as remote code execution. The details leaked via a removed Hacker News post, and watchTowr confirmed they are real. The PHP…
Cloudflare published defensive guidance following the disclosure of actively exploited Citrix NetScaler vulnerabilities. CVE-2026-88771 allows unauthenticated command execution on affected appliances, including in the default configuration. CVE-2026-88772 affects configurations using DTLS. Citrix's September 27, 2026 bulletin reported obs…