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CVE-2014-4684

21
FAUCET Score

CVE-2014-4684 is a privilege escalation vulnerability affecting Siemens SIMATIC WinCC (before version 7.3) and related products like PCS7. An authenticated attacker can exploit this flaw by sending a crafted request to TCP port 1433, gaining elevated privileges on the database server. This vulnerability has a CVSS score of 6.0, indicating a medium severity with network access, medium attack complexity, and partial impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, and no public exploit code is available in Metasploit, Nuclei, or ExploitDB. While it has received limited community discussion and media coverage, it is not listed on the CISA KEV catalog.

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

6.0MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Exploitability Score
6.8
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.34%
Probability of exploitation in next 30 days
EPSS Percentile
68.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0134 is in the 66th percentile among its peer group of 1,425 CVEs.

Social Chatter

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