How severe is CVE-2018-4835?

CVE-2018-4835 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2018-4835 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-4835?

CVE-2018-4835 affects Siemens Telecontrol Server Basic. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-4835?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-4835 published?

CVE-2018-4835 was published on 2018-01-25 and last updated on 2026-06-17.

CVE-2018-4835

CVE-2018-4835 is a medium-severity vulnerability in Siemens Telecontrol Server Basic with a CVSS 3.x base score of 5.3. 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
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 network access to the TeleControl Server Basic's port 8000/tcp could bypass the authentication mechanism and read limited information.

Frequently asked questions

What is CVE-2018-4835?: A vulnerability has been identified in TeleControl Server Basic < V3.1. An attacker with network access to the TeleControl Server Basic's port 8000/tcp could bypass the authentication mechanism and read limited information.
How severe is CVE-2018-4835?: CVE-2018-4835 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2018-4835 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-4835?: CVE-2018-4835 affects Siemens Telecontrol Server Basic. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-4835?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-4835 published?: CVE-2018-4835 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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