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OpenAdvisories

Vendor

UltraVNC

10 known vulnerabilities.

UltraVNC at a glance

Last 12 months
3
Critical · all time
0
Exploited · all time
0
Public exploit · all time
0
New vulnerabilities per month · last 12 months
0 3 5 December 2025: 0 vulnerabilities Dec 2025 January 2026: 0 vulnerabilities February 2026: 3 vulnerabilities March 2026: 0 vulnerabilities Mar April 2026: 0 vulnerabilities May 2026: 0 vulnerabilities June 2026: 0 vulnerabilities Jun July 2026: 0 vulnerabilities August 2026: 0 vulnerabilities September 2026: 0 vulnerabilities Sep October 2026: 0 vulnerabilities November 2026: 0 vulnerabilities
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Products

UltraVNC 7 UltraVNC Launcher 2 UltraVNC Viewer 1

Latest advisories

  • High max 9.8
    WID-SEC-2026-2162 10 CVEs

    UltraVNC: Mehrere Schwachstellen

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in UltraVNC ausnutzen, um beliebigen Programmcode auszuführen, vertrauliche Informationen offenzulegen, Daten zu manipulieren, und einen Denial of Service zu verursachen.

    UltraVNC Windows
  • Medium max 7.0
    WID-SEC-2026-0637 1 CVE

    UltraVNC: Schwachstelle ermöglicht Codeausführung

    Ein lokaler Angreifer kann eine Schwachstelle in UltraVNC ausnutzen, um beliebigen Programmcode auszuführen.

    UltraVNC Windows
All Critical High Medium Low Exploited only Public exploit

10 results · Feed

  • High 7.5
    CVE-2020-37134

    UltraVNC Viewer 1.2.4.0 - 'VNCServer' Denial of Service

    UltraVNC Viewer 1.2.4.0 contains a denial of service vulnerability that allows attackers to crash the application by manipulating VNC Server input. Attackers can generate a malformed 256-byte payload and paste it into the VNC Server connection dialog to trigg…

    UltraVNC UltraVNC Viewer
  • High 7.5
    CVE-2020-37133

    UltraVNC Launcher 1.2.4.0 - 'RepeaterHost' Denial of Service

    UltraVNC Launcher 1.2.4.0 contains a denial of service vulnerability in the Repeater Host configuration field that allows attackers to crash the application. Attackers can paste an overly long string of 300 characters into the Repeater Host property to trigge…

    UltraVNC UltraVNC Launcher
  • Medium 6.2
    CVE-2020-37132

    UltraVNC Launcher 1.2.4.0 - 'Password' Denial of Service

    UltraVNC Launcher 1.2.4.0 contains a denial of service vulnerability in its password configuration properties that allows local attackers to crash the application. Attackers can paste an overly long 300-character string into the password field to trigger an a…

    UltraVNC UltraVNC Launcher
  • High 8.8
    CVE-2022-24750

    Low privilege user is able to exploit the service and gain SYSTEM privileges in UltraVNC server

    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 syste…

    UltraVNC UltraVNC
  • Unscored —
    CVE-2018-15361

    UltraVNC revision 1198 has a buffer underflow vulnerability in VNC client code, which can potentially result in code ex…

    UltraVNC UltraVNC
  • Unscored —
    CVE-2019-8262

    UltraVNC revision 1203 has multiple heap buffer overflow vulnerabilities in VNC client code inside Ultra decoder, which…

    UltraVNC UltraVNC
  • Unscored —
    CVE-2019-8260

    UltraVNC revision 1199 has a out-of-bounds read vulnerability in VNC client RRE decoder code, caused by multiplication …

    UltraVNC UltraVNC
  • Unscored —
    CVE-2019-8259

    UltraVNC revision 1198 contains multiple memory leaks (CWE-655) in VNC client code, which allow an attacker to read sta…

    UltraVNC UltraVNC
  • Unscored —
    CVE-2019-8261

    UltraVNC revision 1199 has a out-of-bounds read vulnerability in VNC code inside client CoRRE decoder, caused by multip…

    UltraVNC UltraVNC
  • Unscored —
    CVE-2019-8258

    UltraVNC revision 1198 has a heap buffer overflow vulnerability in VNC client code which results code execution. This a…

    UltraVNC UltraVNC