CVE-2016-5673 describes a vulnerability in UltraVNC Repeater versions prior to 1300, where it fails to restrict destination IP addresses or TCP ports. This flaw allows remote attackers to leverage the repeater for open-proxy functionality by inserting a "::" substring between the IP address and port number. Rated with a CVSS score of 7.5 (High), this vulnerability is easily exploitable over the network with low complexity, potentially leading to high impact on integrity without requiring user interaction. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or KEV listing has been identified, there has been minimal community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 1201CPE matchmatch criteria | cpe:2.3:a:ultravnc:repeater:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.