How severe is CVE-2023-34853?

CVE-2023-34853 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-34853 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-34853?

CVE-2023-34853 primarily affects Supermicro X12dai-n6 Firmware. In total, 271 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-34853?

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-2023-34853 published?

CVE-2023-34853 was published on 2023-08-22 and last updated on 2026-06-17.

CVE-2023-34853

CVE-2023-34853 is a high-severity vulnerability in Supermicro X12dai-n6 Firmware with a CVSS 3.x base score of 7.8. 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-787.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Supermicro X12dai-n6 Firmware
Published: 2023-08-22
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2023-34853?: Buffer Overflow vulnerability in Supermicro motherboard X12DPG-QR 1.4b allows local attackers to hijack control flow via manipulation of SmcSecurityEraseSetupVar variable.
How severe is CVE-2023-34853?: CVE-2023-34853 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-34853 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-34853?: CVE-2023-34853 primarily affects Supermicro X12dai-n6 Firmware. In total, 271 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-34853?: 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-2023-34853 published?: CVE-2023-34853 was published on 2023-08-22 and last updated on 2026-06-17.

References

Affected products (271)

cpe:2.3:o:supermicro:x12dai-n6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12ddw-a6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12dgo-6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12dgq-r_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12dgu_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12dhm-6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12dpd-a6m25_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12dpfr-an6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12dpg-ar_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12dpg-oa6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12dpg-oa6-gd2_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12dpg-qbt6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12dpg-qr_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12dpg-qt6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12dpg-u6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12dpi-n6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12dpi-nt6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12dpl-i6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12dpl-nt6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12dpt-b6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12dpt-pt46_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12dpt-pt6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12dpu-6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12dsc-6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12qch\+_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12sae_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12sae-5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12sca-5f_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12sca-f_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12scq_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12scv-lvds_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12scv-w_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12scz-f_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12scz-qf_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12scz-tln4f_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12sdv-10c-sp6f_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12sdv-10c-spt4f_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12sdv-14c-spt8f_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12sdv-16c-spt8f_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x12sdv-20c-spt8f_firmware:-:*:*:*:*:*:*:*

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