CVE-2023-47267: Thegreenbow VPN Client

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

An issue discovered in TheGreenBow Windows Enterprise Certified VPN Client 6.52, Windows Standard VPN Client 6.87, and Windows Enterprise VPN Client 6.87 allows attackers to gain escalated privileges via crafted changes to memory mapped file.

Affected products

• Thegreenbow Thegreenbow VPN Client: from 6.52.004, before 6.52.006 (fixed in 6.52.006); from 6.87.001, before 6.87.108 (fixed in 6.87.108); from 6.87.001, before 6.87.109 (fixed in 6.87.109)

Published 2023-12-19. Last modified 2026-06-17.