Network Time Protocol (NTP), as specified in RFC 5905, uses port 123 even for modes where a fixed port number is not required, which makes it easier for remote attackers to conduct off-path attacks.
CVSS Details
- CVSS 3.1 Base Score: 8.1
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| F5 Big Ip | f5-bigip-upgrade-latest | Jun 17, 2026 | Jul 23, 2019 | |
| Ntp | ntp-upgrade-latest | Feb 23, 2023 | Apr 18, 2019 | |
| Redhat_linux | no-fix-redhat-rpm-package | Jul 9, 2025 | Apr 18, 2019 |
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