Vulnerabilities > Tightvnc

DATE CVE VULNERABILITY TITLE RISK
2023-04-12 CVE-2023-27830 Improper Privilege Management vulnerability in Tightvnc
TightVNC before v2.8.75 allows attackers to escalate privileges on the host operating system via replacing legitimate files with crafted files when executing a file transfer.
network
low complexity
tightvnc CWE-269
critical
9.0
2021-11-23 CVE-2021-42785 Classic Buffer Overflow vulnerability in Tightvnc 1.3.10/1.3.9/2.8.59
Buffer Overflow vulnerability in tvnviewer.exe of TightVNC Viewer allows a remote attacker to execute arbitrary instructions via a crafted FramebufferUpdate packet from a VNC server.
network
low complexity
tightvnc CWE-120
7.5
2019-10-29 CVE-2019-8287 Classic Buffer Overflow vulnerability in Tightvnc 1.3.10
TightVNC code version 1.3.10 contains global buffer overflow in HandleCoRREBBP macro function, which can potentially result code execution.
network
low complexity
tightvnc CWE-120
7.5
2019-10-29 CVE-2019-15680 NULL Pointer Dereference vulnerability in Tightvnc 1.3.10
TightVNC code version 1.3.10 contains null pointer dereference in HandleZlibBPP function, which results Denial of System (DoS).
network
low complexity
tightvnc CWE-476
5.0
2019-10-29 CVE-2019-15679 Out-of-bounds Write vulnerability in Tightvnc 1.3.10
TightVNC code version 1.3.10 contains heap buffer overflow in InitialiseRFBConnection function, which can potentially result code execution.
network
low complexity
tightvnc CWE-787
7.5
2019-10-29 CVE-2019-15678 Out-of-bounds Write vulnerability in Tightvnc 1.3.10
TightVNC code version 1.3.10 contains heap buffer overflow in rfbServerCutText handler, which can potentially result code execution..
network
low complexity
tightvnc CWE-787
7.5
2009-02-04 CVE-2009-0388 Numeric Errors vulnerability in multiple products
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.
network
low complexity
tightvnc ultravnc CWE-189
critical
10.0
2003-03-03 CVE-2002-1511 Authentication Cookie Predictability vulnerability in TightVNC Server
The vncserver wrapper for vnc before 3.3.3r2-21 uses the rand() function instead of srand(), which causes vncserver to generate weak cookies.
network
low complexity
att tightvnc
5.0
2002-12-31 CVE-2002-1848 Unspecified vulnerability in Tightvnc
TightVNC before 1.2.4 running on Windows stores unencrypted passwords in the password text control of the WinVNC Properties dialog, which could allow local users to access passwords.
local
low complexity
tightvnc
2.1
2002-12-11 CVE-2002-1336 Unspecified vulnerability in Tightvnc
TightVNC before 1.2.6 generates the same challenge string for multiple connections, which allows remote attackers to bypass VNC authentication by sniffing the challenge and response of other users.
network
low complexity
tightvnc
7.5