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CVE-2018-4836

27
FAUCET Score

CVE-2018-4836 is a high-severity privilege escalation vulnerability affecting Siemens TeleControl Server Basic versions prior to V3.1. An authenticated, low-privileged attacker can exploit this flaw via TCP port 8000 to gain administrative control, leading to full compromise of confidentiality, integrity, and availability. While not listed in CISA KEV and lacking public exploit code, the vulnerability has received some community discussion and media coverage, indicating awareness within the cybersecurity community.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.1CPE matchmatch criteria
cpe:2.3:a:siemens:telecontrol_server_basic:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.80%
Probability of exploitation in next 30 days
EPSS Percentile
76.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0180 is in the 74th percentile among its peer group of 17,822 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

siemens.com / cert/pool/cert/siemens_security_advisory_ssa-651454.pdf
PatchVendor Advisory
securityfocus.com / bid/102897
Third Party AdvisoryVDB Entry
securityfocus.com / bid/102904
Third Party AdvisoryVDB Entry