How severe is CVE-2018-7658?

CVE-2018-7658 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-7658 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 38% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-7658?

CVE-2018-7658 affects Softros Network Time System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-7658?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-7658 published?

CVE-2018-7658 was published on 2018-03-26 and last updated on 2026-06-17.

CVE-2018-7658

CVE-2018-7658 is a high-severity vulnerability in Softros Network Time System with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 38% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 38% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Softros Network Time System
Published: 2018-03-26
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2018-7658?: 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.
How severe is CVE-2018-7658?: CVE-2018-7658 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-7658 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 38% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-7658?: CVE-2018-7658 affects Softros Network Time System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-7658?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-7658 published?: CVE-2018-7658 was published on 2018-03-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:softros:network_time_system:2.3.4:*:*:*:*:*:*:*

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