CVE-2021-0187

CVE-2021-0187 is a low-severity vulnerability in Intel Xeon Gold 6342 Firmware with a CVSS 3.x base score of 3.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

• Severity: Low (CVSS 3.x base score 3.2)
• EPSS exploit prediction: 0% (12th percentile)
• Actively exploited: Not listed in CISA KEV
• Affected product: Intel Xeon Gold 6342 Firmware
• Published: 2023-02-16
• Last modified: 2026-06-17

Description

Improper access control in the BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable an escalation of privilege via local access.

Frequently asked questions

What is CVE-2021-0187?

Improper access control in the BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable an escalation of privilege via local access.

How severe is CVE-2021-0187?

CVE-2021-0187 has a CVSS 3.x base score of 3.2, rated low severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2021-0187 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-0187?

CVE-2021-0187 primarily affects Intel Xeon Gold 6342 Firmware. In total, 53 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-0187?

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

When was CVE-2021-0187 published?

CVE-2021-0187 was published on 2023-02-16 and last updated on 2026-06-17.

References

• http://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00717.html

Affected products (53)

• cpe:2.3:o:intel:xeon_gold_6342_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_gold_6346_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_gold_6330_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_platinum_8360y_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_gold_6354_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_gold_6314u_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_gold_6338n_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_silver_4314_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_silver_4316_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_gold_5318y_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_gold_5317_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_gold_6334_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_gold_6326_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_silver_4309y_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_gold_6348_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_silver_4310_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_gold_6338t_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_gold_5318s_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_gold_6336y_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_gold_5318n_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_gold_6312u_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_silver_4310t_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_gold_5320t_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_gold_5320_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_gold_5315y_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_platinum_8352m_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_platinum_8362_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_platinum_8368_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_platinum_8358_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_platinum_8352y_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_gold_6338_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_gold_6330n_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_platinum_8380_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_platinum_8351n_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_platinum_8368q_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_platinum_8352s_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_platinum_8358p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_platinum_8352v_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_platinum_8360hl_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_platinum_8360h_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Intel Xeon Gold 6342 Firmware

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• CVE-2021-33060 — High (CVSS 7.8): Out-of-bounds write in the BIOS firmware for some Intel(R) Processors may allow an authenticated user to potentially…
• CVE-2021-33123 — High (CVSS 7.8): Improper access control in the BIOS authenticated code module for some Intel(R) Processors may allow a privileged user…
• CVE-2021-0159 — High (CVSS 7.8): Improper input validation in the BIOS authenticated code module for some Intel(R) Processors may allow a privileged…
• CVE-2022-32231 — High (CVSS 7.5): Improper initialization in the BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially…
• CVE-2022-30539 — High (CVSS 7.5): Use after free in the BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable…

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