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CVE-2024-38528

22
FAUCET Score

CVE-2024-38528 affects nptd-rs, a clock synchronization tool, specifically when configured as an NTS-KE server. The vulnerability stems from a missing limit on accepted NTS-KE connections, allowing an unauthenticated remote attacker to crash the server. With a CVSS score of 7.5 (High), this denial-of-service vulnerability is easily exploitable over the network with low attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion, and the vulnerability has been patched in nptd-rs version 1.1.3.

Impacted Technologies

VendorProductVersion(s)CPE
Pendulum-ProjectNtpd-Rs
>= 0.3.1, <= 1.1.2CNA affected

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.72%
Probability of exploitation in next 30 days
EPSS Percentile
50.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0072 is in the 26th percentile among its peer group of 51,553 CVEs.

Social Chatter

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.

Media 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.

Remediation

Patch Available

Vendor Patches (1)

rustpatch availablevia ghsa
Product: ntpdFixed in: 1.1.3

Vendor Advisories (1)

rustGHSA-2xpx-vcmq-5f72high

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

Jun 28, 2024

References

github.com / pendulum-project/ntpd-rs/security/advisories/GHSA-2xpx-vcmq-5f72