How severe is CVE-2017-2680?

CVE-2017-2680 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2017-2680 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-2017-2680?

CVE-2017-2680 primarily affects Siemens Simatic Cp 343-1 Std Firmware. In total, 116 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-2680?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-2680 published?

CVE-2017-2680 was published on 2017-05-11 and last updated on 2026-06-17.

CVE-2017-2680

CVE-2017-2680 is a medium-severity vulnerability in Siemens Simatic Cp 343-1 Std Firmware with a CVSS 3.x base score of 6.5. 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-400.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 6.1
CVSS v4: 7.1
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Siemens Simatic Cp 343-1 Std Firmware
Published: 2017-05-11
Last modified: 2026-06-17

Description

Specially crafted PROFINET DCP broadcast packets could cause a denial of service condition of affected products on a local Ethernet segment (Layer 2). Human interaction is required to recover the systems. PROFIBUS interfaces are not affected.

Frequently asked questions

What is CVE-2017-2680?: Specially crafted PROFINET DCP broadcast packets could cause a denial of service condition of affected products on a local Ethernet segment (Layer 2). Human interaction is required to recover the systems. PROFIBUS interfaces are not affected.
How severe is CVE-2017-2680?: CVE-2017-2680 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2017-2680 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-2017-2680?: CVE-2017-2680 primarily affects Siemens Simatic Cp 343-1 Std Firmware. In total, 116 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-2680?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-2680 published?: CVE-2017-2680 was published on 2017-05-11 and last updated on 2026-06-17.

References

Affected products (116)

cpe:2.3:o:siemens:simatic_cp_343-1_std_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_cp_343-1_lean_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_cp_343-1_adv_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_cp_443-1_std_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_cp_443-1_adv_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_cp_443-1_opc-ua_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_cp_1243-1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_cm_1542-1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_cp_1542sp-1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_cp_1542sp-1_irc_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_cp_1543sp-1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_cp_1543-1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_rf650r_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_rf680r_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_rf685r_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_cp_1616_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_cp_1604_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_dk-1616_pn_io_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_x200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_x200_irt_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_x300_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_x408_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_x414_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xm400_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xr500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_w700_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_m-800_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_s615_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:softnet_profinet_io_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:softnet_profinet_io_firmware:14:-:*:*:*:*:*:*
cpe:2.3:o:siemens:ie\/pb-link_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:ie\/as-i_link_pn_io_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_teleservice_adapter_ie_standard_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_teleservice_adapter_ie_basic_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_teleservice_adapter_ie_advanced_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:sitop_psu8600_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:ups1600_profinet_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_et_200al_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_et_200ecopn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_et_200m_firmware:*:*:*:*:*:*:*:*

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