Medium 6.2Published Feb 5, 2026

CVE-2020-37132UltraVNC Launcher 1.2.4.0 - 'Password' Denial of Service

Updated under an hour ago (Oct 28, 2026, 4:23 AM ET)

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It affects UltraVNC Team UltraVNC Launcher and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for UltraVNC Team UltraVNC Launcher

Exploited in the last 30 days

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 application crash and prevent normal launcher functionality.

CVSS: 6.2 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-121
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Analyzed
Record last updated: Feb 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

UltraVNC Team UltraVNC Launcher ultravnc_team:ultravnc_launcher (from the name)	1.2.4.0	CNA record
uvnc ultravnc uvnc:ultravnc	through 1.2.4.0	NVD

References

References

https://www.exploit-db.com/exploits/48290	exploit, third-party-advisory, vdb-entry
https://www.uvnc.com/	product
https://www.vulncheck.com/advisories/ultravnc-launcher-password-denial-of-service	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.