Published: 08/03/2019 Updated: 19/10/2020

CVSS v2 Base Score: 7.5 | Impact Score: 6.4 | Exploitability Score: 10

CVSS v3 Base Score: 9.8 | Impact Score: 5.9 | Exploitability Score: 3.9

VMScore: 668

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

UltraVNC revision 1206 has multiple off-by-one vulnerabilities in VNC client code connected with improper usage of ClientConnection::ReadString function, which can potentially result code execution. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1207.

Vulnerable Product	Search on Vulmon	Subscribe to Product
uvnc ultravnc
siemens sinumerik access mymachine\\/p2p
siemens sinumerik pcu base win10 software\\/ipc
siemens sinumerik pcu base win7 software\\/ipc

CWE-193 https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-015-ultravnc-off-by-one-error/https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf https://www.us-cert.gov/ics/advisories/icsa-20-161-06 https://nvd.nist.gov

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CVE-2019-8268

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