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Vulnerability record · CVE-2023-34853 · published 22 August 2023

CVE-2023-34853: Supermicro x12dai-n6 firmware out-of-bounds write vulnerability

Supermicro · X12dai N6 Firmware

Buffer Overflow vulnerability in Supermicro motherboard X12DPG-QR 1.4b allows local attackers to hijack control flow via manipulation of SmcSecurityEraseSetupVar variable.

7.8 CVSS 3.1 High EPSS 0.39% · top 68.8% CWE-787 · Out-of-bounds write
7.8CVSS 3.1 base score
0.39%EPSS exploitation probability, 30 days
NoNot in CISA KEV
150Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Buffer Overflow vulnerability in Supermicro motherboard X12DPG-QR 1.4b allows local attackers to hijack control flow via manipulation of SmcSecurityEraseSetupVar variable.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

150 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.supermicro.com/Bios/softfiles/17136/X12DPG-QR_1.4b_X1.02.61_SUM2.10.0.zip. Product
https://www.supermicro.com/en/support/security_BIOS_Aug_2023 Vendor Advisory
https://www.supermicro.com/Bios/softfiles/17136/X12DPG-QR_1.4b_X1.02.61_SUM2.10.0.zip. Product
https://www.supermicro.com/en/support/security_BIOS_Aug_2023 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-34853), CISA KEV, FIRST EPSS (scores of 2026-10-08). This page is refreshed as NVD updates the record.