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CVE-2018-11456

21
FAUCET Score

CVE-2018-11456 is a vulnerability in Siemens Automation License Manager 5 (all versions prior to 5.3.4.4) that allows an unauthenticated attacker with network access to the device to perform basic network scanning. By sending specially crafted packets, the attacker can determine if a port on another remote system is accessible through the affected device. This medium-severity vulnerability (CVSS 5.8) has low impact, limited to information disclosure about network port accessibility, with no known active exploitation, public exploit code, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.3.4.4CPE matchmatch criteria
cpe:2.3:a:siemens:automation_license_manager:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.8MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.27%
Probability of exploitation in next 30 days
EPSS Percentile
66.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0127 is in the 46th percentile among its peer group of 23,723 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

cert-portal.siemens.com / productcert/pdf/ssa-920962.pdf
Vendor Advisory
securityfocus.com / bid/105114
Third Party AdvisoryVDB Entry