Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2015-1356

14
FAUCET Score

CVE-2015-1356 describes a privilege escalation vulnerability in Siemens SIMATIC STEP 7 (TIA Portal) before version 13 SP1. The software fails to protect the integrity of project-file fields used for privilege determination, allowing remote attackers to manipulate these files and establish arbitrary authorization data. This vulnerability has a CVSS score of 4.4 (medium severity) with an attack vector of local access, medium attack complexity, and potential for partial impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit, Nuclei, or ExploitDB, despite some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 13.0CPE matchmatch criteria
cpe:2.3:a:siemens:simatic_step_7:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.4MEDIUM

AV:L/AC:M/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.51%
Probability of exploitation in next 30 days
EPSS Percentile
40.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0051 is in the 78th percentile among its peer group of 1,595 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Media Mentions

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

siemens.com / innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-234789.pdf
Vendor Advisory