CVEvulnerability
CVE-2019-8268
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2019-03-08
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-193
Description
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.
Affected configurations
• uvnc ultravnc (< 1.2.2.3)
• siemens sinumerik access mymachine\/p2p (< 4.8)
• siemens sinumerik pcu base win10 software\/ipc (< 14.00)
• siemens sinumerik pcu base win7 software\/ipc (<= 12.01)
Related
Weakness · CWE (1)
- CWE-193 Off-by-one Error weakness
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf Third Party Advisory
- https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-015-ultravnc-off-by-one-error/ Third Party Advisory
- https://www.us-cert.gov/ics/advisories/icsa-20-161-06 Third Party Advisory, US Government Resource
- https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf Third Party Advisory
- https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-015-ultravnc-off-by-one-error/ Third Party Advisory
- https://www.us-cert.gov/ics/advisories/icsa-20-161-06 Third Party Advisory, US Government Resource