CVE-2018-8956 describes a denial-of-service vulnerability in ntpd versions 4.2.8p10 through 4.2.8p13, allowing remote attackers to disrupt time synchronization for broadcast NTP clients. An attacker on the same broadcast network can send spoofed mode 3 and mode 5 packets to prevent clients from synchronizing with a broadcast NTP server. Rated as Medium severity (CVSS 5.3), this vulnerability has a low impact (availability loss) and does not require authentication. 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 |
|---|---|---|---|
4.2.8CPE matchmatch criteria | cpe:2.3:a:ntp:ntp:4.2.8:p10:*:*:*:*:*:* | ||
4.2.8CPE matchmatch criteria | cpe:2.3:a:ntp:ntp:4.2.8:p11:*:*:*:*:*:* | ||
4.2.8CPE matchmatch criteria | cpe:2.3:a:ntp:ntp:4.2.8:p12:*:*:*:*:*:* | ||
4.2.8CPE matchmatch criteria | cpe:2.3:a:ntp:ntp:4.2.8:p13:*:*:*:*:*:* |
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:L
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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.