CVE-2018-11457

highpriority · track · 34EPSS 0.046 · 92 %ileEURUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
4.59% (92nd) EPSS
CVSS 9.3 · high
Is it mine?
19 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-26

A vulnerability has been identified in SINUMERIK 828D V4.7 (All versions < V4.7 SP6 HF1), SINUMERIK 840D sl V4.7 (All versions < V4.7 SP6 HF5), SINUMERIK 840D sl V4.8 (All versions < V4.8 SP3). The integrated web server on port 4842/tcp of the affected products could allow a remote attacker to execute code with privileged permissions on the system by sending specially crafted network requests to port 4842/tcp. Please note that this vulnerability is only exploitable if port 4842/tcp is manually opened in the firewall configuration of network port X130. The security vulnerability could be exploited by an attacker with network access to the affected devices on port 4842/tcp. Successful exploitation requires no privileges and no user interaction. The vulnerability could allow an attacker to compromise confidentiality, integrity and availability of the web server. At the time of advisory publication no public exploitation of this security vulnerability was known.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

  • MitigationSINUMERIK 808D V4.7cisa_csaf_ot

    Siemens has identified the following specific workarounds and mitigations thatcustomers can apply to reduce the risk:firewall on port X130privilege approach Apply Defense-in-Depth

  • MitigationSINUMERIK 808D V4.8cisa_csaf_ot

    Siemens has identified the following specific workarounds and mitigations thatcustomers can apply to reduce the risk:firewall on port X130privilege approach Apply Defense-in-Depth

  • MitigationSINUMERIK 828D V4.7cisa_csaf_ot

    Siemens has identified the following specific workarounds and mitigations thatcustomers can apply to reduce the risk:firewall on port X130privilege approach Apply Defense-in-Depth

  • MitigationSINUMERIK 840D sl V4.7cisa_csaf_ot

    Siemens has identified the following specific workarounds and mitigations thatcustomers can apply to reduce the risk:firewall on port X130privilege approach Apply Defense-in-Depth

  • MitigationSINUMERIK 840D sl V4.8cisa_csaf_ot

    Siemens has identified the following specific workarounds and mitigations thatcustomers can apply to reduce the risk:firewall on port X130privilege approach Apply Defense-in-Depth

02

cvss

Technical severity, 0–10. One row per scoring source.

9.8
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.4–9.8

v2.09.3highAV:N/AC:M/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 8.6 · impact 10
v3.08.1highCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.2 · impact 5.9
v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · CISA US
v3.07.4highCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-122USCWE-122USCWE-122US
04

affected products (19)

Products and version ranges known to be affected.

05

advisories (1)

Vendor and ecosystem advisories describing this.

  • ICSA-18-345-02ICSA-18-345-02 Siemens SINUMERIK Controllers (Update A)2018-12-11icsa · cisa_csaf_otUS

    CISA recommends users take defensive measures to minimize the exploitation risk of this vulnerability.

06

also known as (4)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducisa_csaf_otnvdNVDCVE.orgMITRE
published 2018-12-12modified 2026-06-17
08

references (6)

External citations — patches, advisories, analysis.

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