CVE-2024-38528

Unlimited number of NTS-KE connections can crash ntpd-rs server

HIGH
7.5
CVSS Score
Published: June 28, 2024 at 07:28 PM UTC
Updated: June 17, 2026 at 07:40 AM UTC
2 products affected across 2 vendorsNtpd RsNtpd Rs

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Severity
HIGH7.5
Exploit prediction
EPSS 0.7%
SSVC
No known exploit

Description

nptd-rs is a tool for synchronizing your computer's clock, implementing the NTP and NTS protocols. There is a missing limit for accepted NTS-KE connections. This allows an unauthenticated remote attacker to crash ntpd-rs when an NTS-KE server is configured. Non NTS-KE server configurations, such as the default ntpd-rs configuration, are unaffected. This vulnerability has been patched in version 1.1.3.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0.3.1 ≤ v ≤ 1.1.20.3.1
v ≤ 1.1.2

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-770

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