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CVE-2014-4683

15
FAUCET Score

CVE-2014-4683 describes a privilege escalation vulnerability in the WebNavigator server component of Siemens SIMATIC WinCC, affecting versions prior to 7.3, including its use in PCS7. This vulnerability allows remote authenticated attackers to gain elevated privileges through crafted HTTP or HTTPS requests. While the CVSS score is 4.9 (medium severity) due to requiring authentication and medium attack complexity, successful exploitation could lead to partial confidentiality and integrity compromise. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or inclusion in CISA's KEV catalog, though it has received some community and media attention.

Impacted Technologies

VendorProductVersion(s)CPE
<= 8.0CPE matchmatch criteria
cpe:2.3:a:siemens:simatic_pcs7:*:sp1:*:*:*:*:*:*
7.1CPE matchmatch criteria
cpe:2.3:a:siemens:simatic_pcs7:7.1:sp3:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:a:siemens:simatic_pcs7:8.0:*:*:*:*:*:*:*
<= 7.2CPE matchmatch criteria
cpe:2.3:a:siemens:wincc:*:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:a:siemens:wincc:5.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.9MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Exploitability Score
6.8
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.22%
Probability of exploitation in next 30 days
EPSS Percentile
65.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0122 is in the 63rd percentile among its peer group of 1,425 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, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

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 / innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-214365.pdf
Vendor Advisory