Securitybrief.Au F5 BIG-IP Security Breach Exposes Critical Infrastructure Risks
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A security breach of F5's BIG-IP product line has been disclosed, revealing that a state-sponsored threat actor gained unauthorized access to F5's internal engineering and product development environments. The attackers exploited sensitive source code, vulnerability details, and select customer implementation data, affecting organizations worldwide that rely on F5 BIG-IP appliances.
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Critical Zero-Day Exploited in BeyondTrust Remote Support by China-linked Group A critical vulnerability in BeyondTrust Remote Support, tracked as CVE-2026-102764 with a CVSS score of 9.3, has been exploited by the China-linked espionage group Armory Castle since August 29, 2026. This flaw allows unauthenticated remote attackers to perform file operations, gaining root control and access to… 
Critical BeyondTrust 9.3 Vulnerability Actively Exploited by Threat Actor A critical vulnerability (CVE-2026-102764) in BeyondTrust Remote Support has been discovered and is actively being exploited by the threat group ARMORY CASTLE, reportedly linked to China. The vulnerability, which has a CVSS score of 9.3, allows unauthenticated attackers to upload files and potentially compromise host…