CVE-2020-37133
highpriority · track · 30EPSS 0.005 · 46 %ileEUUSEPSS · scored 2026-10-28
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 trigger an application crash.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (10)
External citations — patches, advisories, analysis.
- https://uvnc.com/downloads/ultravnc.htmlPatchcnnvd
- https://www.exploit-db.com/exploits/48288cnnvd
- https://www.uvnc.com/cnnvd
- https://www.vulncheck.com/advisories/ultravnc-launcher-repeaterhost-denial-of-servicecnnvd
- https://www.exploit-db.com/exploits/48288enisa_euvd
- https://www.uvnc.com/enisa_euvd
- https://www.vulncheck.com/advisories/ultravnc-launcher-repeaterhost-denial-of-serviceenisa_euvd
- https://www.exploit-db.com/exploits/48288ExploitThird Party AdvisoryVDB Entrynvd
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