What is CVE-2019-8266?

CVE-2019-8266 is a critical-severity vulnerability in Kaspersky Lab Ultravnc, classified under CWE-788. CVSS score: 9.8/10. Published 2019-03-08.

How severe is CVE-2019-8266?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Out-of-bounds Read in Kaspersky Lab Ultravnc

CVE-2019-8266

UltraVNC revision 1207 has multiple out-of-bounds access vulnerabilities connected with improper usage of ClientConnection::Copybuffer function in VNC client code, which can potentially result in code execution. This attack appears to be e…

EPSS: 0.028 (84.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Kaspersky Lab Ultravnc — versions 1.2.2.3
Uvnc Ultravnc

Weakness classification (CWE)

References

vulnerability@kaspersky.com (Third Party Advisory, x_refsource_MISC)
vulnerability@kaspersky.com (x_refsource_CONFIRM)
vulnerability@kaspersky.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2019-8266?: CVE-2019-8266 is a critical-severity vulnerability in Kaspersky Lab Ultravnc, classified under CWE-788. CVSS score: 9.8/10. Published 2019-03-08.
How severe is CVE-2019-8266?: Critical severity. CVSS v3 base score is 9.8 out of 10.