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CVE-2022-24750

high CVSS 8.8 EPSS 0.3%

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.

Versions it affects

Software versions checked with the free lookup that CVE-2022-24750 applies to, and the release that fixes it where the sources name one.

UltraVNC 1.3.0.0

At a glance

Severity
High
CVSS base score
8.8 out of 10
Known exploited
Not in CISA's catalogue of exploited vulnerabilities
EPSS
0.3% probability of exploitation in the next 30 days, higher than 20% of scored vulnerabilities
Weakness
CWE-269
Published
2022-03-10
NVD CVE.org

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