How severe is CVE-2017-6873?

CVE-2017-6873 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2017-6873 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-6873?

CVE-2017-6873 primarily affects Siemens Ozw772 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-6873?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2017-6873 published?

CVE-2017-6873 was published on 2017-08-08 and last updated on 2026-06-17.

CVE-2017-6873

CVE-2017-6873 is a high-severity vulnerability in Siemens Ozw772 Firmware with a CVSS 3.x base score of 7.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: High (CVSS 3.x base score 7.4)
CVSS v2: 5.8
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Siemens Ozw772 Firmware
Published: 2017-08-08
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2017-6873?: 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.
How severe is CVE-2017-6873?: CVE-2017-6873 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2017-6873 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-6873?: CVE-2017-6873 primarily affects Siemens Ozw772 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-6873?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2017-6873 published?: CVE-2017-6873 was published on 2017-08-08 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:siemens:ozw772_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:ozw672_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Siemens Ozw772 Firmware

CVE-2025-26389 — Critical (CVSS 10.0): A vulnerability has been identified in OZW672 (All versions < V8.0), OZW772 (All versions < V8.0). The web service in…
CVE-2025-26390 — Critical (CVSS 9.8): A vulnerability has been identified in OZW672 (All versions < V6.0), OZW772 (All versions < V6.0). The web service of…
CVE-2019-13941 — High (CVSS 7.5): A vulnerability has been identified in OZW672 (All versions < V10.00), OZW772 (All versions < V10.00). Vulnerable…
CVE-2024-36140 — Medium (CVSS 6.8): A vulnerability has been identified in OZW672 (All versions < V5.2), OZW772 (All versions < V5.2). The user accounts…
CVE-2017-6872 — Medium (CVSS 6.5): A vulnerability was discovered in Siemens OZW672 (all versions) and OZW772 (all versions) that could allow an attacker…
CVE-2016-1488 — Medium (CVSS 6.1): Cross-site scripting (XSS) vulnerability in the login form in the integrated web server on Siemens OZW OZW672 devices…

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