CVE-2016-7426 describes a denial-of-service vulnerability in NTP versions prior to 4.2.8p9, affecting products from vendors like Canonical, HPE, and Red Hat. An unauthenticated remote attacker can exploit this by sending spoofed responses to an NTP server with rate limiting enabled, preventing it from receiving legitimate responses from its configured sources. This vulnerability has a CVSS v3.1 score of 7.5 (HIGH), indicating a network-based attack with low complexity and high impact on availability, but no impact on confidentiality or integrity. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 4.2.6, < 4.2.8CPE matchmatch criteria | cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:* | ||
>= 4.3.0, < 4.3.94CPE matchmatch criteria | cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:* | ||
4.2.5CPE matchmatch criteria | cpe:2.3:a:ntp:ntp:4.2.5:p203:*:*:*:*:*:* | ||
4.2.5CPE matchmatch criteria | cpe:2.3:a:ntp:ntp:4.2.5:p204:*:*:*:*:*:* | ||
4.2.5CPE matchmatch criteria | cpe:2.3:a:ntp:ntp:4.2.5:p205:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
No social media mentions found for this CVE.
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.