What is CVE-2019-8271?

CVE-2019-8271 is a critical-severity vulnerability in Kaspersky Lab Ultravnc, classified under Heap-based Buffer Overflow. CVSS score: 9.8/10. Published 2019-03-08.

How severe is CVE-2019-8271?

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

Buffer overflow in Kaspersky Lab Ultravnc

CVE-2019-8271

UltraVNC revision 1211 has a heap buffer overflow vulnerability in VNC server code inside file transfer handler, which can potentially result code execution. This attack appears to be exploitable via network connectivity. This vulnerabilit…

Vulnerability class: Buffer Overflow

EPSS: 0.083 (94.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

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

Frequently asked questions

What is CVE-2019-8271?: CVE-2019-8271 is a critical-severity vulnerability in Kaspersky Lab Ultravnc, classified under Heap-based Buffer Overflow. CVSS score: 9.8/10. Published 2019-03-08.
How severe is CVE-2019-8271?: Critical severity. CVSS v3 base score is 9.8 out of 10.