Weekly Cybersecurity Briefing (20 October â 26 October 2025)
A week marked by widespread cloud disruption, active exploitation of critical server flaws, and an escalation in developer supplyâchain threats.
AWS experienced a DNS and loadâbalancer outage that disrupted major consumer and developer services and spurred opportunistic phishing campaigns.
CISA added multiple actively exploited vulnerabilities to its Known Exploited Vulnerabilities catalogue, including a Windows SMB privilege escalation and Adobe/Oracle issues.
A critical WSUS deserialisation flaw (CVEâ2025â59287) was patched after proofâofâconcept exploits and active attacks were reported.
Developer supplyâchain risks intensified as GlassWorm selfâpropagating malware and TARmageddon tarâparser flaws targeted extension ecosystems and libraries.
Stateâlinked espionage and ransomware activity continued, with new toolkits and resurgent RaaS operations observed across multiple campaigns.