Vulnerability
NetScaler Memory Overflow Triggers Denial of Service
A new high-severity flaw in Citrix NetScaler has been discovered just days after patches deployed previous critical vulnerabilities. The CVE-2026-88779 memory overflow allows attackers to crash appliances through repeated triggers, particularly affecting deployments with SAML authentication enabled. CISA added it to the Known Exploited Vulnerabilities catalog with a remediation deadline.
Attackers Exploit Critical Rejetto HTTP Server Flaw
A critical vulnerability in Rejetto HTTP File Server (CVE-2026-61500, CVSS 9.3) is being actively exploited in the wild. The flaw stems from a weak pseudo-random number generator allowing attackers to forge admin sessions and gain remote code execution.
Security Researchers Uncover 32 Zero-Day Vulnerabilities at Pwn2Own
Hackers at the Pwn2Own Ireland competition exploited 32 zero-day vulnerabilities on the first day, affecting Samsung Galaxy S26, Philips Hue Bridge, AI services, and printers. Security researchers earned significant prize money demonstrating critical flaws in widely-used devices. The findings highlight persistent security gaps in consumer technology.
SonicWall Issues Critical Patch for Maximum-Severity SSRF Flaw
SonicWall released urgent hotfixes for four vulnerabilities in its SMA1000 appliances, including a maximum-severity server-side request forgery flaw allowing unauthenticated attackers to access internal network functions.