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CVE-2018-7658Network Time System Vulnerability

NTSServerSvc.exe in the server in Softros Network Time System 2.3.4 allows remote attackers to cause a denial of service (daemon crash) by sending exactly 11 bytes.

Published Mar 26, 2018 · Updated Nov 21, 2024

Key Facts

Patch immediately
  • CVE-2018-7658 is a high-severity vulnerability (CVSS 7.5 v3) affecting Network Time System (Softros).
  • It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
  • EPSS estimates a 39% probability of exploitation in the next 30 days.
  • No fixed version is listed yet; check the vendor advisory for mitigations.
  • Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Scores

CVSS v3

7.5

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS (30-day exploit likelihood)

39%

Higher than 98.5% of all scored CVEs

Exploit maturity

Proof of concept

ATLAS score

43/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Not listed

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Proof of concept

Public exploit code

3

Proof-of-concept links

In-the-wild evidence

0

Reports of active use

Description

NTSServerSvc.exe in the server in Softros Network Time System 2.3.4 allows remote attackers to cause a denial of service (daemon crash) by sending exactly 11 bytes.

Affected Products

1 affected entries in total
ProductAffected versionsFixed in
Network Time SystemSoftros2.3.4n/a

Timeline

  1. Publicly disclosed

    Mar 26, 2018

  2. Last updated

    Nov 21, 2024

Weakness Type

  • CWE-20 Improper Input Validation

FAQ

Common Questions.

Is CVE-2018-7658 On Your Attack Surface?

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Figures as of Oct 19, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

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