Vulnerabilities (CVE)

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Filtered by vendor Ultravnc Subscribe
Filtered by product Ultravnc
Total 5 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2009-0388 2 Tightvnc, Ultravnc 2 Tightvnc, Ultravnc 2018-10-11 10.0 HIGH N/A
Multiple integer signedness errors in (1) UltraVNC 1.0.2 and 1.0.5 and (2) TightVnc 1.3.9 allow remote VNC servers to cause a denial of service (heap corruption and application crash) or possibly execute arbitrary code via a large length value in a message, related to the (a) ClientConnection::CheckBufferSize and (b) ClientConnection::CheckFileZipBufferSize functions in ClientConnection.cpp.
CVE-2006-2206 1 Ultravnc 1 Ultravnc 2017-07-19 10.0 HIGH N/A
The MS-Logon authentication scheme in UltraVNC (aka Ultr@VNC) 1.0.1 uses weak encryption (XOR) for challenge/response, which allows remote attackers to gain privileges by sniffing and decrypting passwords.
CVE-2010-5248 1 Ultravnc 1 Ultravnc 2012-09-07 6.9 MEDIUM N/A
Untrusted search path vulnerability in UltraVNC 1.0.8.2 allows local users to gain privileges via a Trojan horse vnclang.dll file in the current working directory, as demonstrated by a directory that contains a .vnc file. NOTE: some of these details are obtained from third party information.
CVE-2008-0610 1 Ultravnc 1 Ultravnc 2012-08-13 9.3 HIGH N/A
Stack-based buffer overflow in the ClientConnection::NegotiateProtocolVersion function in vncviewer/ClientConnection.cpp in vncviewer for UltraVNC 1.0.2 and 1.0.4 before 01252008, when in LISTENING mode or when using the DSM plugin, allows remote attackers to execute arbitrary code or cause a denial of service (crash) via a modified size value.
CVE-2008-5001 1 Ultravnc 1 Ultravnc 2011-03-07 9.3 HIGH N/A
Multiple stack-based buffer overflows in multiple functions in vncviewer/FileTransfer.cpp in vncviewer for UltraVNC 1.0.2 and 1.0.4 before 01252008, when in LISTENING mode or when using the DSM plugin, allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified parameters, a different issue than CVE-2008-0610.