How severe is CVE-2018-4836?

CVE-2018-4836 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-4836 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-4836?

CVE-2018-4836 affects Siemens Telecontrol Server Basic. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-4836?

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-2018-4836 published?

CVE-2018-4836 was published on 2018-01-25 and last updated on 2026-06-17.

CVE-2018-4836

CVE-2018-4836 is a high-severity vulnerability in Siemens Telecontrol Server Basic with a CVSS 3.x base score of 8.8. 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-287.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
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 authenticated attacker with a low-privileged account to the TeleControl Server Basic's port 8000/tcp could escalate his privileges and perform administrative operations.

Frequently asked questions

What is CVE-2018-4836?: A vulnerability has been identified in TeleControl Server Basic < V3.1. An authenticated attacker with a low-privileged account to the TeleControl Server Basic's port 8000/tcp could escalate his privileges and perform administrative operations.
How severe is CVE-2018-4836?: CVE-2018-4836 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-4836 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-4836?: CVE-2018-4836 affects Siemens Telecontrol Server Basic. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-4836?: 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-2018-4836 published?: CVE-2018-4836 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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Other CWE-287 (Improper Authentication) vulnerabilities

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