HOMEVULNERABILITIESCVE-2023-34853
HIGH

CVE-2023-34853

CWE-787Published: August 22, 2023· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

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

NVD Source

Technical Analysis

CVE-2023-34853 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

supermicro542 product(s)
x12dai-n6 firmwarex12dai-n6x12ddw-a6 firmwarex12ddw-a6x12dgo-6 firmwarex12dgo-6x12dgq-r firmwarex12dgq-rx12dgu firmwarex12dgux12dhm-6 firmwarex12dhm-6+530
Source: NVD CPE · 542 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://www.supermicro.com/en/support/security_BIOS_Aug_2023
ADVISORYhttps://www.supermicro.com/en/support/security_BIOS_Aug_2023

All References (4)

→
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_2023Vendor 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_2023Vendor Advisory

Quick Facts

CVE IDCVE-2023-34853
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-787
CISA KEVNo
Affected1 vendor(s)
PublishedAug 22, 2023

Related CVEs (CWE-787)

CVE-2013-5610
10.0
CVE-2015-5105
10.0
CVE-2004-1287
10.0
CVE-2015-0235
10.0
CVE-2014-1478
10.0
CVE-2018-6692
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-34853 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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