How severe is CVE-2018-4837?

CVE-2018-4837 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-2018-4837 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-4837?

CVE-2018-4837 affects Siemens Telecontrol Server Basic. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-4837?

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-2018-4837 published?

CVE-2018-4837 was published on 2018-01-25 and last updated on 2026-06-17.

CVE-2018-4837

CVE-2018-4837 is a high-severity vulnerability in Siemens Telecontrol Server Basic with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Siemens Telecontrol Server Basic
Published: 2018-01-25
Last modified: 2026-06-17

Description

A vulnerability has been identified in TeleControl Server Basic < V3.1. An attacker with access to the TeleControl Server Basic's webserver (port 80/tcp or 443/tcp) could cause a Denial-of-Service condition on the web server. The remaining functionality of the TeleControl Server Basic is not affected by the Denial-of-Service condition.

Frequently asked questions

What is CVE-2018-4837?: A vulnerability has been identified in TeleControl Server Basic < V3.1. An attacker with access to the TeleControl Server Basic's webserver (port 80/tcp or 443/tcp) could cause a Denial-of-Service condition on the web server. The remaining functionality of the TeleControl Server Basic is not affected by the Denial-of-Service condition.
How severe is CVE-2018-4837?: CVE-2018-4837 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-2018-4837 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-4837?: CVE-2018-4837 affects Siemens Telecontrol Server Basic. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-4837?: 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-2018-4837 published?: CVE-2018-4837 was published on 2018-01-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:siemens:telecontrol_server_basic:*:*:*:*:*:*:*:*

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