CVE-2018-11455

mediumpriority · track · 37EPSS 0.052 · 92 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

5.24% (92nd) EPSS

CVSS 6.8 · medium

Is it mine?

9 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

A vulnerability has been identified in Automation License Manager 5 (All versions < 5.3.4.4), Automation License Manager 6 (All versions < 6.0.1). A directory traversal vulnerability could allow a remote attacker to move arbitrary files, which can result in code execution, compromising confidentiality, integrity and availability of the system. Successful exploitation requires a network connection to the affected device. The attacker does not need privileges or special conditions of the system, but user interaction is required.

remediations

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

A vendor fix is available.

FixedAutomation License Manager 5cisa_csaf_ot
Update to V5.3.4.4 - Download: https://support.industry.siemens.com/cs/ww/en/view/114358
https://support.industry.siemens.com/cs/ww/en/view/114358
FixedAutomation License Manager 6cisa_csaf_ot
Update to V6.0.1 - Download: https://support.industry.siemens.com/cs/ww/en/view/114358
https://support.industry.siemens.com/cs/ww/en/view/114358
MitigationAutomation License Manager 5cisa_csaf_ot
Siemens has identified the following specific workarounds and mitigations thatcustomers can apply to reduce the risk: Restrict network access as far as possible
MitigationAutomation License Manager 6cisa_csaf_ot
Siemens has identified the following specific workarounds and mitigations thatcustomers can apply to reduce the risk: Restrict network access as far as possible

cvss

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

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–8.8

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4

v3.08.8highCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.08.8highCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · CISA US

v3.08.1highCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-22USprimaryCWE-22US

affected products (9)

Products and version ranges known to be affected.

Automation License Manager 5all versionscisa_csaf_otUS
Automation License Manager 6all versionscisa_csaf_otUS
Siemens Automation License Manager 5< 5.3.4.4cisa_csaf_otUS
Siemens Automation License Manager 6< 6.0.1cisa_csaf_otUS
Siemens AG Automation License Manager 5, Automation License Manager 6Automation License Manager 5 : All versions → 5.3.4.4enisa_euvdEU
Siemens AG Automation License Manager 5, Automation License Manager 6Automation License Manager 6 : All versions → 6.0.1enisa_euvdEU
siemens automation license manager< 5.3.4.4nvdUScpe:2.3:a:siemens:automation_license_manager:*:*:*:*:*:*:*:*
siemens automation license manager5.0 → 5.3.4.4nvdUScpe:2.3:a:siemens:automation_license_manager:*:*:*:*:*:*:*:*
siemens automation license manager6.0 → 6.0.1nvdUScpe:2.3:a:siemens:automation_license_manager:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-18-226-03ICSA-18-226-03 Siemens Automation License Manager2018-08-07icsa · cisa_csaf_otUS
CISA recommends users take defensive measures to minimize the exploitation risk of this vulnerability.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot nvd NVD CVE.org MITRE

published 2018-08-07modified 2026-06-17

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Related entries.

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+12525 more

references (6)

External citations — patches, advisories, analysis.

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