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UltraVNC UltraVNCUltraVNC vncauth.c uses time-seeded libc rand() to generate VNC authentication challenge bytes

Risk 40
Severity
6.5
First published (updated )
CVE-2026-44040

UltraVNC UltraVNCUltraVNC vncWc2Mb calls wcslen() before validating that the wide string is NUL-terminated

Risk 40
Severity
6.5
First published (updated )
CVE-2026-44041

UltraVNC UltraVNCUltraVNC Service version.dll uncontrolled search path

Risk 49
Severity
6.4
EPSS
0.01%
First published (updated )
CVE-2026-4962

UltraVNC UltraVNCUltraVNC Windows Service cryptbase.dll uncontrolled search path

Risk 49
Severity
7.3
EPSS
0.01%
First published (updated )
CVE-2026-3787

UltraVNC UltraVNCUntrusted search path vulnerability in UltraVNC 1.0.8.2 allows local users to gain privileges via a …

Risk 59
Severity
6.9
First published (updated )
CVE-2010-5248
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UltraVNC UltraVNCMultiple integer signedness errors in (1) UltraVNC 1.0.2 and 1.0.5 and (2) TightVnc 1.3.9 allow remo…

Risk 87
Severity
10
First published (updated )
CVE-2009-0388

UltraVNC UltraVNCBuffer Overflow

Risk 79
Severity
9.3
First published (updated )
CVE-2008-5001

UltraVNC UltraVNCWeak Encryption

Risk 87
Severity
10
First published (updated )
CVE-2006-2206

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