How severe is CVE-2022-26837?

CVE-2022-26837 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-26837 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-26837?

CVE-2022-26837 primarily affects Intel Xeon Gold 5317 Firmware. In total, 227 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-26837?

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-2022-26837 published?

CVE-2022-26837 was published on 2023-02-16 and last updated on 2026-06-17.

CVE-2022-26837

CVE-2022-26837 is a high-severity vulnerability in Intel Xeon Gold 5317 Firmware 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Intel Xeon Gold 5317 Firmware
Published: 2023-02-16
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2022-26837?: Improper input validation in the BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.
How severe is CVE-2022-26837?: CVE-2022-26837 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-26837 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-26837?: CVE-2022-26837 primarily affects Intel Xeon Gold 5317 Firmware. In total, 227 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-26837?: 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-2022-26837 published?: CVE-2022-26837 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 (227)

cpe:2.3:o:intel:xeon_gold_5317_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_gold_5318n_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_gold_5318s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_gold_5318y_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_gold_5320_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_gold_5320t_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_gold_6312u_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_gold_6314u_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_gold_6326_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_gold_6330_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_gold_6330n_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_gold_6334_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_gold_6336y_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_gold_6338_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_gold_6338n_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_gold_6338t_firmware:-:*:*:*:*:*:*:*
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_6348_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_gold_6354_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_platinum_8351n_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_platinum_8352m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_platinum_8352s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_platinum_8352v_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_platinum_8352y_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_platinum_8358_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_platinum_8358p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_platinum_8360y_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_8368q_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_platinum_8380_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_silver_4309y_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_silver_4310_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_silver_4310t_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_6330h_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_platinum_8356h_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_platinum_8360h_firmware:-:*:*:*:*:*:*:*

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