Vulnerability Description
UltraVNC Viewer 1.2.2.4 contains a denial of service vulnerability that allows attackers to crash the application by supplying an oversized string to the VNC Server input field. Attackers can paste a malicious string containing 256 repeated characters into the VNC Server field and click Connect to trigger a buffer overflow that crashes the viewer.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://www.exploit-db.com/exploits/46702
- https://www.uvnc.com/
- https://www.uvnc.com/downloads/ultravnc/126-download-ultravnc-1224.html
- https://www.vulncheck.com/advisories/ultravnc-viewer-denial-of-service-via-buffe
FAQ
What is CVE-2019-25600?
CVE-2019-25600 is a vulnerability with a CVSS score of 6.5 (MEDIUM). UltraVNC Viewer 1.2.2.4 contains a denial of service vulnerability that allows attackers to crash the application by supplying an oversized string to the VNC Server input field. Attackers can paste a ...
How severe is CVE-2019-25600?
CVE-2019-25600 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-25600?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.