CVE-2015-7691 is a denial-of-service vulnerability in NTP versions 4.2.x before 4.2.8p4 and 4.3.x before 4.3.77, affecting products from vendors like Debian, NetApp, Oracle, and Red Hat. This flaw, an incomplete fix for CVE-2014-9750, allows remote attackers to crash the ntpd service by sending specially crafted packets related to autokey operations. With a CVSS score of 7.5 (HIGH), it presents a low-complexity network attack with a high impact on availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 4.2.0, < 4.2.8CPE matchmatch criteria | cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:* | ||
>= 4.3.0, < 4.3.77CPE matchmatch criteria | cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:* | ||
4.2.8CPE matchmatch criteria | cpe:2.3:a:ntp:ntp:4.2.8:-:*:*:*:*:*:* | ||
4.2.8CPE matchmatch criteria | cpe:2.3:a:ntp:ntp:4.2.8:p1:*:*:*:*:*:* | ||
4.2.8CPE matchmatch criteria | cpe:2.3:a:ntp:ntp:4.2.8:p1-beta1:*:*:*:*:*:* |
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
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.
[R1] NTP Autokey Functionality Multiple Remote DoS
Oct 21, 2015ntp: incomplete checks in ntp_crypto.c
Oct 21, 2015[R1] NTP Autokey Functionality Multiple Remote DoS
Oct 21, 2015[R1] NTP Autokey Functionality Multiple Remote DoS
Oct 21, 2015