Ubiquiti has addressed three critical vulnerabilities within the UniFi OS Server that attackers can chain together to achieve unauthenticated remote code execution (RCE) with root privileges. Disclosed on May 21, 2026, via Security Advisory Bulletin 064 (SAB-064), the flaws are tracked as CVE-2026-34908, CVE-2026-34909, and CVE-2026-34910. Each vulnerability carries a maximum CVSS 3.1 severity score […]
The post Critical UniFi OS Auth Bypass Flaws Lead to Unauthenticated Root RCE appeared first on GBHackers Security | #1 Globally Trusted Cyber Security News Platform.

China-Linked Espionage Cluster Deploys Custom ASPX/ASHX Shells on IIS
A previously disclosed China-linked threat cluster, tracked as OP-512, has been observed deploying a purpose-built web shell framework to compromise Internet Information Services (IIS) servers.


