CVE-2018-15361

UltraVNC revision 1198 has a buffer underflow vulnerability in VNC client code, which can potentially result in code execution. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1199.

• CWE-124
• CWE-787

• https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf
• https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-003-ultravnc-buffer-underwrite/Third Party Advisory
• https://www.us-cert.gov/ics/advisories/icsa-20-161-06
• https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf
• https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-003-ultravnc-buffer-underwrite/Third Party Advisory
• https://www.us-cert.gov/ics/advisories/icsa-20-161-06

Published

Mar 5, 2019

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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