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CVE-2017-6870

22
FAUCET Score

CVE-2017-6870 describes a critical vulnerability in Siemens SIMATIC WinCC Sm@rtClient for Android versions prior to V1.0.2.2, where a flawed TLS implementation allows for Man-in-the-Middle (MitM) attacks. This high-severity flaw (CVSS 7.4) enables an unauthenticated attacker to intercept and alter data within a TLS session, leading to high confidentiality and integrity impacts without user interaction. Despite its severity, there is no known active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.0.2.1CPE matchmatch criteria
cpe:2.3:a:siemens:simatic_wincc_sm\@rtclient:*:*:*:*:*:android:*:*

CVSS Data

CVSS version used by this source: 3.0

7.4HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
5.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.95%
Probability of exploitation in next 30 days
EPSS Percentile
57.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0095 is in the 23rd percentile among its peer group of 8,918 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

siemens.com / cert/pool/cert/siemens_security_advisory_ssa-589378.pdf
Vendor Advisory
securityfocus.com / bid/99582
Third Party AdvisoryVDB Entry