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CVE-2016-7959

14
FAUCET Score

CVE-2016-7959 describes a vulnerability in Siemens SIMATIC STEP 7 (TIA Portal) versions prior to 14, where pre-shared key data is insecurely stored within TIA project files. This flaw allows local attackers with file access to potentially extract sensitive information through brute-force attacks. The vulnerability has a CVSS v3 score of 4.7 (MEDIUM), indicating a low attack complexity and requiring local access, but with a high impact on confidentiality. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or inclusion in the KEV catalog, and it has received minimal community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 13.010CPE matchmatch criteria
cpe:2.3:a:siemens:simatic_step_7:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.7MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.0
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.30%
Probability of exploitation in next 30 days
EPSS Percentile
21.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0030 is in the 67th percentile among its peer group of 1,297 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Media Mentions

The average CVE in this peer group has 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

ics-cert.us-cert.gov / advisories/ICSA-16-287-03
securityfocus.com / bid/93551
Third Party AdvisoryVDB Entry
siemens.com / cert/pool/cert/siemens_security_advisory_ssa-869766.pdf
Vendor Advisory