A vulnerability has been identified in Automation License Manager 5 (All versions < 5.3.4.4), Automation License Manager 6 (All versions <…

published 2018-08-07 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-3486

cvss: 8.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 5.2%; EPSS 5.2% chance of exploitation in 30 days, percentile 92%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

siemens automation_license_manager 5.3.4.4, 6.0.1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-18-226-03 updated 2018-08-07 cvss 8.8

ICSA-18-226-03 Siemens Automation License Manager

Siemens Automation License Manager 5 <5.3.4.4
affected: fixed in V5.3.4.4, mitigation support.industry.siemens.com
Siemens Automation License Manager 6 <6.0.1
affected: fixed in V6.0.1, mitigation support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

5.24% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.0	8.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

Siemens AG Automation License Manager 5, Automation License Manager 6

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

cert-portal.siemens.com /productcert/pdf/ssa-920962.pdf
vendor-advisory
securityfocus.com /bid/105114
vdb-entry, third-party-advisory

Sources

CVE List CVE-2018-11455
NVD CVE-2018-11455

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary