How severe is CVE-2020-12337?

CVE-2020-12337 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-12337 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-12337?

CVE-2020-12337 primarily affects Intel Nuc 8 Mainstream-g Kit Nuc8i5inh Firmware. In total, 23 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-12337?

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

When was CVE-2020-12337 published?

CVE-2020-12337 was published on 2020-11-12 and last updated on 2026-06-17.

CVE-2020-12337

CVE-2020-12337 is a medium-severity vulnerability in Intel Nuc 8 Mainstream-g Kit Nuc8i5inh Firmware with a CVSS 3.x base score of 6.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.7)
CVSS v2: 4.6
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Intel Nuc 8 Mainstream-g Kit Nuc8i5inh Firmware
Published: 2020-11-12
Last modified: 2026-06-17

Description

Improper buffer restrictions in firmware for some Intel(R) NUCs may allow a privileged user to potentially enable escalation of privilege via local access.

Frequently asked questions

What is CVE-2020-12337?: Improper buffer restrictions in firmware for some Intel(R) NUCs may allow a privileged user to potentially enable escalation of privilege via local access.
How severe is CVE-2020-12337?: CVE-2020-12337 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-12337 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-12337?: CVE-2020-12337 primarily affects Intel Nuc 8 Mainstream-g Kit Nuc8i5inh Firmware. In total, 23 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-12337?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-12337 published?: CVE-2020-12337 was published on 2020-11-12 and last updated on 2026-06-17.

References

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00414

Affected products (23)

cpe:2.3:o:intel:nuc_8_mainstream-g_kit_nuc8i5inh_firmware:inwhl357.0036:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc_8_mainstream-g_kit_nuc8i7inh_firmware:inwhl357.0036:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc_8_mainstream-g_mini_pc_nuc8i5inh_firmware:inwhl357.0036:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc_8_mainstream-g_mini_pc_nuc8i7inh_firmware:inwhl357.0036:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc_8_pro_board_nuc8i3pnb_firmware:pnwhl357.0037:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc_8_pro_kit_nuc8i3pnh_firmware:pnwhl357.0037:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc_8_pro_kit_nuc8i3pnk_firmware:pnwhl357.0037:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc_8_pro_mini_pc_nuc8i3pnk_firmware:pnwhl357.0037:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc_8_rugged_kit_nuc8cchkr_firmware:chaplcel.0049:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc_9_pro_kit_nuc9v7qnx_firmware:qncflx70.34:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc_9_pro_kit_nuc9vxqnx_firmware:qncflx70.34:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc_board_h27002-400_firmware:tybyt10h.86a:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc_board_h27002-401_firmware:tybyt10h.86a:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc_board_h27002-402_firmware:tybyt10h.86a:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc_board_h27002-404_firmware:tybyt10h.86a:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc_board_h27002-500_firmware:tybyt20h.86a:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc_board_nuc8cchb_firmware:chaplcel.0049:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc_kit_h26998-401_firmware:tybyt10h.86a:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc_kit_h26998-402_firmware:tybyt10h.86a:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc_kit_h26998-403_firmware:tybyt10h.86a:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc_kit_h26998-404_firmware:tybyt10h.86a:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc_kit_h26998-405_firmware:tybyt10h.86a:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc_kit_h26998-500_firmware:tybyt20h.86a:*:*:*:*:*:*:*

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