CVE-2016-5673

7.5 HIGH
Published: August 25, 2016 Modified: May 06, 2026
View on NVD

Description

UltraVNC Repeater before 1300 does not restrict destination IP addresses or TCP ports, which allows remote attackers to obtain open-proxy functionality by using a :: substring in between the IP address and port number.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.kb.cert.org/vuls/id/735416
Source: cret@cert.org
Third Party Advisory US Government Resource
http://www.kb.cert.org/vuls/id/BLUU-A9WQVP
Source: cret@cert.org
Third Party Advisory US Government Resource
http://www.kb.cert.org/vuls/id/735416
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory US Government Resource
http://www.kb.cert.org/vuls/id/BLUU-A9WQVP
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory US Government Resource
http://www.securityfocus.com/bid/92348
Source: af854a3a-2127-422b-91ae-364da2661108

6 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
1.9%
77th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

ultravnc