CVE-2017-6873

mediumpriority · track · 30OT risk · elevatedEPSS 0.010 · 64 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.03% (64th) EPSS

CVSS 5.8 · medium

Is it mine?

7 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 OZW672 (all versions) and OZW772 (all versions) that could allow an attacker to read and manipulate data in TLS sessions while performing a man-in-the-middle (MITM) attack on the integrated web server on port 443/tcp.

remediations

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

A vendor fix is available.

FixedOZW672cisa_csaf_ot
For more information on this vulnerability and more detailed mitigation instructions, please see Siemens Security Advisory SSA-563539 at the following location:
FixedOZW772cisa_csaf_ot
For more information on this vulnerability and more detailed mitigation instructions, please see Siemens Security Advisory SSA-563539 at the following location:

cvss

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

7.4

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.8–7.4

v2.05.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 4.9

v3.07.4highCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Nprimary · NVD / NIST USexploitability 2.2 · impact 5.2

v3.07.4highCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Nsecondary · CISA US

v3.06.8mediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-306USCWE-306US

affected products (7)

Products and version ranges known to be affected.

OZW672: All versionsall versionscisa_csaf_otUS
OZW772: All versionsall versionscisa_csaf_otUS
Siemens OZW672all versionscisa_csaf_otUS
Siemens OZW772all versionscisa_csaf_otUS
n/a OZW672, OZW772≤ OZW672, OZW772enisa_euvdEU
siemens ozw672 firmwareall versionsnvdUScpe:2.3:o:siemens:ozw672_firmware:*:*:*:*:*:*:*:*
siemens ozw772 firmwareall versionsnvdUScpe:2.3:o:siemens:ozw772_firmware:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-17-187-01Siemens OZW672 and OZW7722017-07-06icsa · cisa_csaf_otUS
ATTENTION: Remotely exploitable/low skill level to exploit.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot nvd NVD CVE.org MITRE

published 2017-08-08modified 2026-06-17

references (6)

External citations — patches, advisories, analysis.

scry

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