How severe is CVE-2017-12736?

CVE-2017-12736 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-12736 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-12736?

CVE-2017-12736 primarily affects Siemens Scalance Xb-200 Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-12736?

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-2017-12736 published?

CVE-2017-12736 was published on 2017-12-26 and last updated on 2026-06-17.

CVE-2017-12736

CVE-2017-12736 is a high-severity vulnerability in Siemens Scalance Xb-200 Firmware with a CVSS 3.x base score of 8.8. 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-1188.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 5.8
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1188
Affected product: Siemens Scalance Xb-200 Firmware
Published: 2017-12-26
Last modified: 2026-06-17

Description

After initial configuration, the Ruggedcom Discovery Protocol (RCDP) is still able to write to the device under certain conditions. This could allow an attacker located in the adjacent network of the targeted device to perform unauthorized administrative actions.

Frequently asked questions

What is CVE-2017-12736?: After initial configuration, the Ruggedcom Discovery Protocol (RCDP) is still able to write to the device under certain conditions. This could allow an attacker located in the adjacent network of the targeted device to perform unauthorized administrative actions.
How severe is CVE-2017-12736?: CVE-2017-12736 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-12736 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-12736?: CVE-2017-12736 primarily affects Siemens Scalance Xb-200 Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-12736?: 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-2017-12736 published?: CVE-2017-12736 was published on 2017-12-26 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:o:siemens:scalance_xb-200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xc-200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xp-200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xr300-wg_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xr-500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xm-400_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:ruggedcom_ros:*:*:*:*:*:*:*:*

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