CVE-2022-26343

CVE-2022-26343 is a high-severity vulnerability in Intel Xeon Bronze 3104 Firmware with a CVSS 3.x base score of 8.2. 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 8.2)
• EPSS exploit prediction: 0% (16th percentile)
• Actively exploited: Not listed in CISA KEV
• Affected product: Intel Xeon Bronze 3104 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 escalation of privilege via local access.

Frequently asked questions

What is CVE-2022-26343?

Improper access control 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-2022-26343?

CVE-2022-26343 has a CVSS 3.x base score of 8.2, rated high 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-2022-26343 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-26343?

CVE-2022-26343 primarily affects Intel Xeon Bronze 3104 Firmware. In total, 209 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-26343?

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-2022-26343 published?

CVE-2022-26343 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 (209)

• cpe:2.3:o:intel:xeon_bronze_3104_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_bronze_3106_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_bronze_3204_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_bronze_3206r_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1513n_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1518_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1520_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1521_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1523n_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1527_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1528_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1529_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1531_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1533n_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1537_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1539_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1540_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1541_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1543n_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1548_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1553n_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1557_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1559_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1567_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1571_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1577_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1602_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1622_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1623n_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1627_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1633n_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1637_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1649n_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1653n_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1702_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1712tr_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1713nt_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1713nte_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1714_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_d-1715ter_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Intel Xeon Bronze 3104 Firmware

• CVE-2019-11137 — High (CVSS 8.2): Insufficient input validation in system firmware for Intel(R) Xeon(R) Scalable Processors, Intel(R) Xeon(R) Processors…
• CVE-2021-0156 — High (CVSS 7.8): Improper input validation in the firmware for some Intel(R) Processors may allow an authenticated user to potentially…
• CVE-2021-0117 — High (CVSS 7.8): Pointer issues in the firmware for some Intel(R) Processors may allow a privileged user to potentially enable an…
• CVE-2021-0116 — High (CVSS 7.8): Out-of-bounds write in the firmware for some Intel(R) Processors may allow a privileged user to potentially enable an…
• CVE-2020-0590 — High (CVSS 7.8): Improper input validation in BIOS firmware for some Intel(R) Processors may allow an authenticated user to potentially…
• 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…

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