Buffer Underflow in UltraVNC Client Code by UltraVNC
CVE-2018-15361

9.8CRITICAL

Key Information:

Vendor

Ultravnc

Status
Ultravnc
Vendor
CVE Published:
5 March 2019

What is CVE-2018-15361?

A buffer underflow vulnerability exists in the VNC client code of UltraVNC revision 1198, which may allow remote attackers to execute arbitrary code through specially crafted network packets. The issue has been addressed in revision 1199, highlighting the importance of updating to the latest version to mitigate potential security threats.

Affected Version(s)

UltraVNC 1.2.2.3

References

https://ics-cert.kaspersky.com/advisories/klcert-advisori...
x_refsource_MISC
https://cert-portal.siemens.com/productcert/pdf/ssa-92709...
x_refsource_CONFIRM
https://www.us-cert.gov/ics/advisories/icsa-20-161-06
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.