CVE-2014-8551

highpriority · track · 42EPSS 0.053 · 93 %ileEUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
5.27% (93rd) EPSS
CVSS 10 · high
Is it mine?
23 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

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 execute arbitrary code via crafted packets.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

  • MitigationSIMATIC PCS 7 V7.1 SP4 and priorcisa_csaf_ot

    As a general security measure, Siemens strongly recommends protecting network access to the SIMATIC WinCC server with appropriate mechanisms. It is also advised to follow recommended security practices and to configure the environment according to operational guidelines in order to run the devices in a protected IT environment.

  • MitigationSIMATIC PCS 7 V8.0cisa_csaf_ot

    As a general security measure, Siemens strongly recommends protecting network access to the SIMATIC WinCC server with appropriate mechanisms. It is also advised to follow recommended security practices and to configure the environment according to operational guidelines in order to run the devices in a protected IT environment.

  • MitigationSIMATIC PCS 7 V8.1cisa_csaf_ot

    As a general security measure, Siemens strongly recommends protecting network access to the SIMATIC WinCC server with appropriate mechanisms. It is also advised to follow recommended security practices and to configure the environment according to operational guidelines in order to run the devices in a protected IT environment.

  • MitigationSIMATIC WinCC V7.2cisa_csaf_ot

    As a general security measure, Siemens strongly recommends protecting network access to the SIMATIC WinCC server with appropriate mechanisms. It is also advised to follow recommended security practices and to configure the environment according to operational guidelines in order to run the devices in a protected IT environment.

  • MitigationSIMATIC WinCC V7.0 SP3 and priorcisa_csaf_ot

    As a general security measure, Siemens strongly recommends protecting network access to the SIMATIC WinCC server with appropriate mechanisms. It is also advised to follow recommended security practices and to configure the environment according to operational guidelines in order to run the devices in a protected IT environment.

  • MitigationSIMATIC WinCC V7.3cisa_csaf_ot

    As a general security measure, Siemens strongly recommends protecting network access to the SIMATIC WinCC server with appropriate mechanisms. It is also advised to follow recommended security practices and to configure the environment according to operational guidelines in order to run the devices in a protected IT environment.

  • MitigationTIA Portal V13 (including WinCC Professional Runtime)cisa_csaf_ot

    As a general security measure, Siemens strongly recommends protecting network access to the SIMATIC WinCC server with appropriate mechanisms. It is also advised to follow recommended security practices and to configure the environment according to operational guidelines in order to run the devices in a protected IT environment.

02

cvss

Technical severity, 0–10. One row per scoring source.

10.0
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.5–10

v2.010highAV:N/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 10 · impact 10
v2.010criticalAV:N/AC:L/Au:N/C:C/I:C/A:Csecondary · CISA US
v2.08.5highAV:N/AC:L/Au:N/C:C/I:C/A:C/E:Usecondary · CVSS-BT (t0sche)
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-94USprimaryCWE-284US
04

affected products (23)

Products and version ranges known to be affected.

showing 20 of 23
05

advisories (1)

Vendor and ecosystem advisories describing this.

  • ICSA-14-329-02DSiemens SIMATIC WinCC, PCS7, and TIA Portal Vulnerabilities2014-08-28icsa · cisa_csaf_otUS

    This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov

06

also known as (3)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdcisa_csaf_otnvdNVDCVE.orgMITRE
published 2014-11-26modified 2026-06-17
09

references (4)

External citations — patches, advisories, analysis.

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