CVE-2016-5117 describes a vulnerability in OpenNTPD versions prior to 6.0p1, where the software fails to validate the Common Name (CN) in HTTPS constraint requests. This flaw allows remote attackers to bypass man-in-the-middle protections by using a specially crafted timestamp constraint with an otherwise valid certificate. With a CVSS score of 5.9 (Medium), this vulnerability has a high integrity impact, but requires high attack complexity and has no confidentiality or availability impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 6.0CPE matchmatch criteria | cpe:2.3:a:openntpd:openntpd:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.