CVE-2019-8275

UltraVNC revision 1211 has multiple improper null termination vulnerabilities in VNC server code, which result in out-of-bound data being accessed by remote users. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1212.

• CWE-170

• https://cert-portal.siemens.com/productcert/pdf/ssa-286838.pdf
• https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdfThird Party Advisory
• https://cert-portal.siemens.com/productcert/pdf/ssa-940818.pdf
• https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-022-ultravnc-improper-null-termination/Third Party Advisory
• https://us-cert.cisa.gov/ics/advisories/icsa-21-131-11
• https://www.us-cert.gov/ics/advisories/icsa-20-161-06Third Party Advisory, US Government Resource
• https://cert-portal.siemens.com/productcert/pdf/ssa-286838.pdf
• https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdfThird Party Advisory
• https://cert-portal.siemens.com/productcert/pdf/ssa-940818.pdf
• https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-022-ultravnc-improper-null-termination/Third Party Advisory
• https://us-cert.cisa.gov/ics/advisories/icsa-21-131-11
• https://www.us-cert.gov/ics/advisories/icsa-20-161-06Third Party Advisory, US Government Resource

Published

Mar 8, 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.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2019-8269UltraVNC revision 1206 has stack-based Buffer overflow vulne…7.5
• CVE-2019-8270UltraVNC revision 1210 has out-of-bounds read vulnerability …
• CVE-2019-8271UltraVNC revision 1211 has a heap buffer overflow vulnerabil…9.8
• CVE-2019-8272UltraVNC revision 1211 has multiple off-by-one vulnerabiliti…9.8
• CVE-2019-8273UltraVNC revision 1211 has a heap buffer overflow vulnerabil…9.8
• CVE-2019-8274UltraVNC revision 1211 has a heap buffer overflow vulnerabil…9.8
• CVE-2019-8276UltraVNC revision 1211 has a stack buffer overflow vulnerabi…7.5
• CVE-2019-8277UltraVNC revision 1211 contains multiple memory leaks (CWE-6…7.5
• CVE-2019-8278Stored XSS in Invision Power Board versions 3.3.1 - 3.4.8 le…
• CVE-2019-8279Multiple stored XSS in Vanilla Forums before 2.5 allow remot…
• CVE-2019-8280UltraVNC revision 1203 has out-of-bounds access vulnerabilit…
• CVE-2019-8282Gemalto Admin Control Center, all versions prior to 7.92, us…5.3