CVE-2019-8264

critical

Description

UltraVNC revision 1203 has out-of-bounds access vulnerability in VNC client inside Ultra2 decoder, which can potentially result in code execution. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1204.

References

https://www.us-cert.gov/ics/advisories/icsa-20-161-06

https://us-cert.cisa.gov/ics/advisories/icsa-21-131-11

https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-011-ultravnc-access-of-memory-location-after-end-of-buffer/

https://cert-portal.siemens.com/productcert/pdf/ssa-940818.pdf

https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf

https://cert-portal.siemens.com/productcert/pdf/ssa-286838.pdf

Details

Source: Mitre, NVD

Published: 2019-03-08

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.01018