uvnc Ultravnc Vulnerabilities

Uvnc Ultravnc vulnerabilities.

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1 July 2026

Buffer Overflow Vulnerability in UltraVNC Repeater by UltraVNC
CVE-2026-7840
UvncUltravnc9.3CRITICAL
Default Password Vulnerability in UltraVNC Repeater
CVE-2026-7839
UvncUltravnc9.1CRITICAL
Integer Overflow Vulnerability in UltraVNC Viewer by UltraVNC
CVE-2026-7838
UvncUltravnc8.7HIGH
Buffer Overflow Vulnerability in UltraVNC Viewer by UltraVNC
CVE-2026-7831
UvncUltravnc7.5HIGH
Insecure Cryptography Vulnerability in UltraVNC by UltraVNC
CVE-2026-7830
UvncUltravnc7.4HIGH
Out-of-Bounds Write in UltraVNC Repeater Affects Admin Credentials
CVE-2026-7829
UvncUltravnc7.2HIGH
Integer Overflow Vulnerability in UltraVNC Repeater Impacting HTTP Request Handling
CVE-2026-7828
UvncUltravnc5.3MEDIUM
Weak Random Number Generation in UltraVNC by UltraVNC
CVE-2026-44040
UvncUltravnc4.8MEDIUM
Out-of-Bounds Read Vulnerability in UltraVNC by UltraVNC
CVE-2026-44041
UvncUltravnc4.3MEDIUM
Off-by-One Error in UltraVNC Repeater Authentication Process
CVE-2026-44042
UvncUltravnc3.7LOW

22 March 2026