How severe is CVE-2020-12366?

CVE-2020-12366 has a CVSS 3.x base score of 7.8, 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-2020-12366 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-12366?

CVE-2020-12366 affects Intel Graphics Drivers. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-12366?

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-2020-12366 published?

CVE-2020-12366 was published on 2021-02-17 and last updated on 2026-06-17.

CVE-2020-12366

CVE-2020-12366 is a high-severity vulnerability in Intel Graphics Drivers with a CVSS 3.x base score of 7.8. 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Intel Graphics Drivers
Published: 2021-02-17
Last modified: 2026-06-17

Description

Insufficient input validation in some Intel(R) Graphics Drivers before version 27.20.100.8587 may allow a privileged user to potentially enable an escalation of privilege via local access.

Frequently asked questions

What is CVE-2020-12366?: Insufficient input validation in some Intel(R) Graphics Drivers before version 27.20.100.8587 may allow a privileged user to potentially enable an escalation of privilege via local access.
How severe is CVE-2020-12366?: CVE-2020-12366 has a CVSS 3.x base score of 7.8, 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-2020-12366 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-12366?: CVE-2020-12366 affects Intel Graphics Drivers. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-12366?: 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-2020-12366 published?: CVE-2020-12366 was published on 2021-02-17 and last updated on 2026-06-17.

References

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00438.html

Affected products (1)

cpe:2.3:a:intel:graphics_drivers:*:*:*:*:*:*:*:*

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