How severe is CVE-2023-46284?

CVE-2023-46284 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-46284 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-46284?

CVE-2023-46284 primarily affects Siemens Opcenter Quality. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-46284?

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-2023-46284 published?

CVE-2023-46284 was published on 2023-12-12 and last updated on 2026-06-17.

CVE-2023-46284

CVE-2023-46284 is a high-severity vulnerability in Siemens Opcenter Quality with a CVSS 3.x base score of 7.5. 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-787.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Siemens Opcenter Quality
Published: 2023-12-12
Last modified: 2026-06-17

Description

A vulnerability has been identified in Opcenter Execution Foundation (All versions < V2407), Opcenter Quality (All versions < V2312), SIMATIC PCS neo (All versions < V4.1), SINEC NMS (All versions < V2.0 SP1), Totally Integrated Automation Portal (TIA Portal) V14 (All versions), Totally Integrated Automation Portal (TIA Portal) V15.1 (All versions), Totally Integrated Automation Portal (TIA Portal) V16 (All versions), Totally Integrated Automation Portal (TIA Portal) V17 (All versions < V17 Update 8), Totally Integrated Automation Portal (TIA Portal) V18 (All versions < V18 Update 3). The affected application contains an out of bounds write past the end of an allocated buffer when handling specific requests on port 4002/tcp and 4004/tcp. This could allow an attacker to crash the application. The corresponding service is auto-restarted after the crash.

Frequently asked questions

What is CVE-2023-46284?: A vulnerability has been identified in Opcenter Execution Foundation (All versions < V2407), Opcenter Quality (All versions < V2312), SIMATIC PCS neo (All versions < V4.1), SINEC NMS (All versions < V2.0 SP1), Totally Integrated Automation Portal (TIA Portal) V14 (All versions), Totally Integrated Automation Portal (TIA Portal) V15.1 (All versions), Totally Integrated Automation Portal (TIA Portal) V16 (All versions), Totally Integrated Automation Portal (TIA Portal) V17 (All versions < V17 Update 8), Totally Integrated Automation Portal (TIA Portal) V18 (All versions < V18 Update 3). The affected application contains an out of bounds write past the end of an allocated buffer when handling specific requests on port 4002/tcp and 4004/tcp. This could allow an attacker to crash the application. The corresponding service is auto-restarted after the crash.
How severe is CVE-2023-46284?: CVE-2023-46284 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-46284 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-46284?: CVE-2023-46284 primarily affects Siemens Opcenter Quality. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-46284?: 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-2023-46284 published?: CVE-2023-46284 was published on 2023-12-12 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:a:siemens:opcenter_quality:-:*:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_pcs_neo:*:*:*:*:*:*:*:*
cpe:2.3:a:siemens:sinumerik_integrate_runmyhmi_\/automotive:-:*:*:*:*:*:*:*
cpe:2.3:a:siemens:totally_integrated_automation_portal:*:*:*:*:*:*:*:*
cpe:2.3:a:siemens:totally_integrated_automation_portal:-:*:*:*:*:*:*:*
cpe:2.3:a:siemens:totally_integrated_automation_portal:18:*:*:*:*:*:*:*
cpe:2.3:a:siemens:totally_integrated_automation_portal:18:update_1:*:*:*:*:*:*

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