CVE-2017-6867

mediumpriority · track · 21EPSS 0.019 · 80 %ileEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
1.92% (80th) EPSS
CVSS 4 · medium
Is it mine?
15 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

A vulnerability was discovered in Siemens SIMATIC WinCC (V7.3 before Upd 11 and V7.4 before SP1), SIMATIC WinCC Runtime Professional (V13 before SP2 and V14 before SP1), SIMATIC WinCC (TIA Portal) Professional (V13 before SP2 and V14 before SP1) that could allow an authenticated, remote attacker who is member of the "administrators" group to crash services by sending specially crafted messages to the DCOM interface.

01

remediations

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

A vendor fix is available.

  • FixedSIMATIC WinCCcisa_csaf_ot

    As a general security measure Siemens strongly recommends protecting network access to SIMATIC WinCC, SIMATIC WinCC Runtime, and SIMATIC WinCC (TIA Portal) Professional stations with appropriate mechanisms. Siemens advises configuring the environment according to Siemens operational guidelines in order to run the devices in a protected IT environment.

  • FixedSIMATIC WinCC Runtime Professional / SIMATIC WinCC (TIA Portal) Professionalcisa_csaf_ot

    As a general security measure Siemens strongly recommends protecting network access to SIMATIC WinCC, SIMATIC WinCC Runtime, and SIMATIC WinCC (TIA Portal) Professional stations with appropriate mechanisms. Siemens advises configuring the environment according to Siemens operational guidelines in order to run the devices in a protected IT environment.

  • FixedSIMATIC PCS 7 V8.1cisa_csaf_ot

    Update WinCC to V7.3 Upd 13 - Download: https://support.industry.siemens.com/cs/ww/en/view/109746452

    https://support.industry.siemens.com/cs/ww/en/view/109746452
  • MitigationSIMATIC PCS 7 V8.1cisa_csaf_ot

    Siemens has identified the following specific workarounds and mitigations thatcustomers can apply to reduce the risk: Apply Defense-in-Depth

  • MitigationSIMATIC PCS 7 V8.2cisa_csaf_ot

    Siemens has identified the following specific workarounds and mitigations thatcustomers can apply to reduce the risk: Apply Defense-in-Depth

02

cvss

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

4.9
010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04mediumAV:N/AC:L/Au:S/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 8 · impact 2.9
v3.04.9mediumCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 1.2 · impact 3.6
v3.04.9mediumCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:Csecondary · CISA US
v3.04.5mediumCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimaryCWE-20USCWE-787USCWE-787US
04

affected products (15)

Products and version ranges known to be affected.

05

advisories (2)

Vendor and ecosystem advisories describing this.

  • ICSA-17-129-03Siemens SIMATIC WinCC and SIMATIC WinCC Runtime Professional2017-05-09icsa · cisa_csaf_otUS

    ATTENTION: Remotely exploitable/low skill level to exploit.

  • ICSA-17-306-01ICSA-17-306-01 Siemens SIMATIC PCS 7 (Update A)2017-10-18icsa · cisa_csaf_otUS

    CISA recommends users take defensive measures to minimize the exploitation risk of this vulnerability.

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 2017-05-11modified 2026-06-17
09

references (8)

External citations — patches, advisories, analysis.

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