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Simatic Wincc CVE-2014-8552

MEDIUM
Information Exposure (CWE-200)
2014-11-26 cve@mitre.org
Information Disclosure Siemens Simatic Wincc Simatic Pcs 7 Simatic Pcs7 Simatic Tiaportal
5.0
CVSS 2.0 · NVD
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Vulnerability Assessment

Weakness
CWE
CWE-200
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V14 - Data Protection Data exposure prevention
MITRE ATT&CK

2 techniques across 2 tactics: Collection, Discovery

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Impact

CVSS score of 5.0 (MEDIUM). Attack characteristics: network attack vector, low complexity. EPSS exploitation probability: 0.12%.
Exploit ScenarioDerived

A remote attacker could access sensitive data that should not be disclosed by sending crafted requests to the affected application.
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAI

The WinCC server in Siemens SIMATIC WinCC 7.0 through SP3, 7.2 before Update 9, and 7.3 before Update 2; SIMATIC PCS 7 7.1 through SP4, 8.0 through SP2, and 8.1; and TIA Portal 13 before Update 6. Rated medium severity (CVSS 5.0), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Minimize information in error messages, implement proper access controls, encrypt sensitive data at rest and in transit.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified as Exposure of Sensitive Information (CWE-200), which allows attackers to access sensitive data that should not be disclosed. The WinCC server in Siemens SIMATIC WinCC 7.0 through SP3, 7.2 before Update 9, and 7.3 before Update 2; SIMATIC PCS 7 7.1 through SP4, 8.0 through SP2, and 8.1; and TIA Portal 13 before Update 6 allows remote attackers to read arbitrary files via crafted packets. Affected products include: Siemens Simatic Pcs 7, Siemens Simatic Pcs7, Siemens Simatic Tiaportal, Siemens Simatic Wincc.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 5.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Confidentiality
P
Integrity
None
Availability
None

DescriptionCVE.org

The WinCC server in Siemens SIMATIC WinCC 7.0 through SP3, 7.2 before Update 9, and 7.3 before Update 2; SIMATIC PCS 7 7.1 through SP4, 8.0 through SP2, and 8.1; and TIA Portal 13 before Update 6 allows remote attackers to read arbitrary files via crafted packets.

Threat Intelligence Overview

EPSS Score
0.1%
Top 70% exploitable
Data Quality
3 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.1%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

25
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +25
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)CVE.org

cpe:2.3:a:siemens:simatic_pcs_7:7.1:sp1:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_pcs7:7.1:sp3:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_pcs7:7.1:sp4:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_pcs7:8.0:sp1:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_pcs7:8.0:sp2:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_pcs7:8.1:*:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_tiaportal:13.0:*:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_tiaportal:13.0:3:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_tiaportal:13.0:5:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_wincc:7.0:*:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_wincc:7.0:sp1:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_wincc:7.0:sp2:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_wincc:7.0:sp3:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_wincc:7.2:1:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_wincc:7.2:2:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_wincc:7.2:3:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_wincc:7.2:4:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_wincc:7.2:5:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_wincc:7.2:6:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_wincc:7.2:7:*:*:*:*:*:*
+ 2 more

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References

Advisories & patches
ADVISORY http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-134508.pdf

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