How severe is CVE-2018-3666?

CVE-2018-3666 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-3666 being actively exploited?

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

What products are affected by CVE-2018-3666?

CVE-2018-3666 affects Intel Intel Smart Sound Technology. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-3666?

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-2018-3666 published?

CVE-2018-3666 was published on 2018-08-01 and last updated on 2026-06-17.

CVE-2018-3666

CVE-2018-3666 is a high-severity vulnerability in Intel Intel Smart Sound Technology 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.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 7.2
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Intel Intel Smart Sound Technology
Published: 2018-08-01
Last modified: 2026-06-17

Description

Driver module in Intel Smart Sound Technology before version 9.21.00.3541 potentially allows a local attacker to execute arbitrary code as administrator via a non-paged pool overflow.

Frequently asked questions

What is CVE-2018-3666?: Driver module in Intel Smart Sound Technology before version 9.21.00.3541 potentially allows a local attacker to execute arbitrary code as administrator via a non-paged pool overflow.
How severe is CVE-2018-3666?: CVE-2018-3666 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-3666 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-3666?: CVE-2018-3666 affects Intel Intel Smart Sound Technology. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-3666?: 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-2018-3666 published?: CVE-2018-3666 was published on 2018-08-01 and last updated on 2026-06-17.

References

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00163.html

Affected products (1)

cpe:2.3:o:intel:intel_smart_sound_technology:*:*:*:*:*:*:*:*

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