How severe is CVE-2017-6865?

CVE-2017-6865 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-2017-6865 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-6865?

CVE-2017-6865 primarily affects Siemens Pcs 7. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-6865?

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

When was CVE-2017-6865 published?

CVE-2017-6865 was published on 2017-05-11 and last updated on 2026-06-17.

CVE-2017-6865

CVE-2017-6865 is a medium-severity vulnerability in Siemens Pcs 7 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 6.1
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Siemens Pcs 7
Published: 2017-05-11
Last modified: 2026-06-17

Description

A vulnerability has been identified in Primary Setup Tool (PST) (All versions < V4.2 HF1), SIMATIC Automation Tool (All versions < V3.0), SIMATIC NET PC-Software (All versions < V14 SP1), SIMATIC PCS 7 V8.1 (All versions), SIMATIC PCS 7 V8.2 (All versions < V8.2 SP1), SIMATIC STEP 7 (TIA Portal) V13 (All versions < V13 SP2), SIMATIC STEP 7 (TIA Portal) V14 (All versions < V14 SP1), SIMATIC STEP 7 V5.X (All versions < V5.6), SIMATIC WinAC RTX 2010 SP2 (All versions), SIMATIC WinAC RTX F 2010 SP2 (All versions), SIMATIC WinCC (TIA Portal) V13 (All versions < V13 SP2), SIMATIC WinCC (TIA Portal) V14 (All versions < V14 SP1), SIMATIC WinCC V7.2 and prior (All versions), SIMATIC WinCC V7.3 (All versions < V7.3 Update 15), SIMATIC WinCC V7.4 (All versions < V7.4 SP1 Upd1), SIMATIC WinCC flexible 2008 (All versions < flexible 2008 SP5), SINAUT ST7CC (All versions installed in conjunction with SIMATIC WinCC < V7.3 Update 15), SINEMA Server (All versions < V14), SINUMERIK 808D Programming Tool (All versions < V4.7 SP4 HF2), SMART PC Access (All versions < V2.3), STEP 7 - Micro/WIN SMART (All versions < V2.3), Security Configuration Tool (SCT) (All versions < V5.0). Specially crafted PROFINET DCP broadcast packets sent to the affected products on a local Ethernet segment (Layer 2) could cause a Denial-of-Service condition of some services. The services require manual restart to recover.

Frequently asked questions

What is CVE-2017-6865?: A vulnerability has been identified in Primary Setup Tool (PST) (All versions < V4.2 HF1), SIMATIC Automation Tool (All versions < V3.0), SIMATIC NET PC-Software (All versions < V14 SP1), SIMATIC PCS 7 V8.1 (All versions), SIMATIC PCS 7 V8.2 (All versions < V8.2 SP1), SIMATIC STEP 7 (TIA Portal) V13 (All versions < V13 SP2), SIMATIC STEP 7 (TIA Portal) V14 (All versions < V14 SP1), SIMATIC STEP 7 V5.X (All versions < V5.6), SIMATIC WinAC RTX 2010 SP2 (All versions), SIMATIC WinAC RTX F 2010 SP2 (All versions), SIMATIC WinCC (TIA Portal) V13 (All versions < V13 SP2), SIMATIC WinCC (TIA Portal) V14 (All versions < V14 SP1), SIMATIC WinCC V7.2 and prior (All versions), SIMATIC WinCC V7.3 (All versions < V7.3 Update 15), SIMATIC WinCC V7.4 (All versions < V7.4 SP1 Upd1), SIMATIC WinCC flexible 2008 (All versions < flexible 2008 SP5), SINAUT ST7CC (All versions installed in conjunction with SIMATIC WinCC < V7.3 Update 15), SINEMA Server (All versions < V14), SINUMERIK 808D Programming Tool (All versions < V4.7 SP4 HF2), SMART PC Access (All versions < V2.3), STEP 7 - Micro/WIN SMART (All versions < V2.3), Security Configuration Tool (SCT) (All versions < V5.0). Specially crafted PROFINET DCP broadcast packets sent to the affected products on a local Ethernet segment (Layer 2) could cause a Denial-of-Service condition of some services. The services require manual restart to recover.
How severe is CVE-2017-6865?: CVE-2017-6865 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-2017-6865 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-6865?: CVE-2017-6865 primarily affects Siemens Pcs 7. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-6865?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-6865 published?: CVE-2017-6865 was published on 2017-05-11 and last updated on 2026-06-17.

References

Affected products (19)

cpe:2.3:a:siemens:pcs_7:-:*:*:*:*:*:*:*
cpe:2.3:a:siemens:primary_setup_tool:-:*:*:*:*:*:*:*
cpe:2.3:a:siemens:security_configuration_tool:-:*:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_automation_tool:-:*:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_net_pc-software:-:*:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_step_7_\(tia_portal\):5.0:*:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_step_7_\(tia_portal\):13.0:*:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_step_7_\(tia_portal\):14.0:*:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_step_7_micro\/win_smart:-:*:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_winac_rtx_2010:-:sp2:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_winac_rtx_f_2010:-:sp2:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_wincc:-:*:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_wincc_\(tia_portal\):13.0:*:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_wincc_\(tia_portal\):14.0:*:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_wincc_flexible_2008:-:*:*:*:*:*:*:*
cpe:2.3:a:siemens:sinaut_st7cc:-:*:*:*:*:*:*:*
cpe:2.3:a:siemens:sinema_server:-:*:*:*:*:*:*:*
cpe:2.3:a:siemens:sinumerik_808d_programming_tool:-:*:*:*:*:*:*:*
cpe:2.3:a:siemens:smart_pc_access:2.0:*:*:*:*:*:*:*

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