CVE-2018-4836
No exploitation reported by the sources we read.
- Published2018-01-25
- Fixed in3.1
- WeaknessCWE-287
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
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.
Timeline
dates in UTC- 2018-01-2514:29CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-4836?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-4836?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 3.1 | < 3.1 | 3.1 | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
Siemens TeleControl Server Basic
TeleControl Server Basic: versions prior to V3.1
Fix
- Update Siemens telecontrol server basic to 3.1
- Vendor fix CISA ICSA-18-030-02 · 1 productSiemens recommends that users install the latest version of TeleControl Server Basic.
- Vendor fix CISA ICSA-18-030-02 · 1 productFor more information on these vulnerabilities and more detailed mitigation instructions, please see Siemens Security Advisory SSA-65145.
- Mitigation from the vendor CISA ICSA-18-030-02 · 1 productIf TeleControl Server Basic is operated in standalone mode, then users can close Port 8000/TCP on the Windows firewall to mitigate vulnerabilities CVE-2018-4835 and CVE-2018-4836.
- Mitigation from the vendor CISA ICSA-18-030-02 · 1 productIf TeleControl Server Basic is operated in redundancy mode, then users can use the Windows firewall to restrict access to Port 8000/TCP to the second TeleControl Server Basics' IP address to mitigate vulnerabilities CVE-2018-4835 and CVE-2018-4836.
- Mitigation from the vendor CISA ICSA-18-030-02 · 1 productUsers can use the Windows firewall to close Ports 80/TCP and 443/TCP to mitigate vulnerability CVE-2018-4837.
Advisories and patches
- www.siemens.comPatch · Vendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- NVDCVSS 3.08.8read 2026-10-23
- NVDCVSS 2.06.5read 2026-10-23
- CNAweakness (CWE)CWE-287read 2026-10-23
- FIRST EPSSEPSS score1.8 %2026-10-22
Technical details
- CVSS v3 Vector
- CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Published
- 2018-01-25
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2018-4836?
Is CVE-2018-4836 actively exploited?
What is the CVSS score for CVE-2018-4836?
Running Siemens TeleControl Server Basic? Hear about its next vulnerability
Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.