Search criteria
14 vulnerabilities by UltraVNC
CVE-2022-24750 (GCVE-0-2022-24750)
Vulnerability from cvelistv5 – Published: 2022-03-10 00:00 – Updated: 2025-04-23 18:55
VLAI?
Summary
UltraVNC is a free and open source remote pc access software. A vulnerability has been found in versions prior to 1.3.8.0 in which the DSM plugin module, which allows a local authenticated user to achieve local privilege escalation (LPE) on a vulnerable system. The vulnerability has been fixed to allow loading of plugins from the installed directory. Affected users should upgrade their UltraVNC to 1.3.8.1. Users unable to upgrade should not install and run UltraVNC server as a service. It is advisable to create a scheduled task on a low privilege account to launch WinVNC.exe instead. There are no known workarounds if winvnc needs to be started as a service.
Severity ?
8.8 (High)
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
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CVE-2019-8258 (GCVE-0-2019-8258)
Vulnerability from cvelistv5 – Published: 2019-03-05 15:00 – Updated: 2024-09-16 19:15
VLAI?
Summary
UltraVNC revision 1198 has a heap buffer overflow vulnerability in VNC client code which results code execution. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1199.
Severity ?
No CVSS data available.
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
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CVE-2019-8260 (GCVE-0-2019-8260)
Vulnerability from cvelistv5 – Published: 2019-03-05 15:00 – Updated: 2024-09-16 20:22
VLAI?
Summary
UltraVNC revision 1199 has a out-of-bounds read vulnerability in VNC client RRE decoder code, caused by multiplication overflow. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1200.
Severity ?
No CVSS data available.
CWE
- CWE-125 - Out-of-bounds Read
Assigner
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CVE-2018-15361 (GCVE-0-2018-15361)
Vulnerability from cvelistv5 – Published: 2019-03-05 15:00 – Updated: 2024-09-16 17:07
VLAI?
Summary
UltraVNC revision 1198 has a buffer underflow vulnerability in VNC client code, which can potentially result in code execution. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1199.
Severity ?
No CVSS data available.
CWE
- CWE-124 - Buffer Underwrite
Assigner
References
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CVE-2019-8262 (GCVE-0-2019-8262)
Vulnerability from cvelistv5 – Published: 2019-03-05 15:00 – Updated: 2024-09-16 16:49
VLAI?
Summary
UltraVNC revision 1203 has multiple heap buffer overflow vulnerabilities in VNC client code inside Ultra decoder, which results in code execution. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1204.
Severity ?
No CVSS data available.
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
| URL | Tags | |||||||||||||||||||
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CVE-2019-8259 (GCVE-0-2019-8259)
Vulnerability from cvelistv5 – Published: 2019-03-05 15:00 – Updated: 2024-09-16 20:59
VLAI?
Summary
UltraVNC revision 1198 contains multiple memory leaks (CWE-655) in VNC client code, which allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1199.
Severity ?
No CVSS data available.
CWE
- CWE-665 - Improper Initialization
Assigner
References
| URL | Tags | |||||||||||||||||||
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CVE-2019-8261 (GCVE-0-2019-8261)
Vulnerability from cvelistv5 – Published: 2019-03-05 15:00 – Updated: 2024-09-17 03:12
VLAI?
Summary
UltraVNC revision 1199 has a out-of-bounds read vulnerability in VNC code inside client CoRRE decoder, caused by multiplication overflow. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1200.
Severity ?
No CVSS data available.
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | |||||||||||||||||||
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CVE-2016-5673 (GCVE-0-2016-5673)
Vulnerability from cvelistv5 – Published: 2016-08-25 21:00 – Updated: 2024-08-06 01:07
VLAI?
Summary
UltraVNC Repeater before 1300 does not restrict destination IP addresses or TCP ports, which allows remote attackers to obtain open-proxy functionality by using a :: substring in between the IP address and port number.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2010-5248 (GCVE-0-2010-5248)
Vulnerability from cvelistv5 – Published: 2012-09-07 10:00 – Updated: 2024-09-16 22:41
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
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CVE-2009-0388 (GCVE-0-2009-0388)
Vulnerability from cvelistv5 – Published: 2009-02-04 19:00 – Updated: 2024-08-07 04:31
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2008-5001 (GCVE-0-2008-5001)
Vulnerability from cvelistv5 – Published: 2008-11-10 11:00 – Updated: 2024-08-07 10:40
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2008-0610 (GCVE-0-2008-0610)
Vulnerability from cvelistv5 – Published: 2008-02-06 11:00 – Updated: 2024-08-07 07:54
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
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CVE-2006-2206 (GCVE-0-2006-2206)
Vulnerability from cvelistv5 – Published: 2006-05-05 10:00 – Updated: 2024-08-07 17:43
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2006-1652 (GCVE-0-2006-1652)
Vulnerability from cvelistv5 – Published: 2006-04-06 10:00 – Updated: 2024-08-07 17:19
VLAI?
Summary
Multiple buffer overflows in (a) UltraVNC (aka Ultr@VNC) 1.0.1 and earlier and (b) tabbed_viewer 1.29 (1) allow user-assisted remote attackers to execute arbitrary code via a malicious server that sends a long string to a client that connects on TCP port 5900, which triggers an overflow in Log::ReallyPrint; and (2) allow remote attackers to cause a denial of service (server crash) via a long HTTP GET request to TCP port 5800, which triggers an overflow in VNCLog::ReallyPrint.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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