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CVE-2023-34853

HighPublished

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

Published: Aug 22, 2023
Updated: Oct 3, 2024
Assigning CNA: mitre
Evidence observed: Aug 4, 2026

Primary CVSS

7.8/ 10High

nvd · CVSS 3.1

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

EPSS probability estimate

0.4%

Low · next 30 days

Percentile: 33.5%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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

Sources

CVE-2023-34853Research
Disclosure of CVE-2023-34853: a stack overflow vulnerability in Supermicro X12DPG-QR BIOS firmware allowing local privilege escalation to DXE Runtime UEFI application execution.

Responsible use

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