Zero-Day on the Market: $220K Exploit Targets Windows Remote Desktop Services (CVE-2026-21533)
Remote Desktop Services (RDS) has come under renewed scrutiny after reports that a working exploit for CVE-2026-21533 — an elevation-of-privilege vulnerability in Windows Remote Desktop Services — was listed for sale on a dark web forum for $220,000. The listing and surrounding reporting are factual and straightforward: a recently created account advertised a claimed zero-day exploit, observers recorded the posting, and vendor and government advisories identify the underlying vulnerability and…