How severe is CVE-2023-40289?

CVE-2023-40289 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-40289 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 18% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-40289?

CVE-2023-40289 primarily affects Supermicro X11ssm-f Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-40289?

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.

Does CVE-2023-40289 have an EU (EUVD) identifier?

Yes. CVE-2023-40289 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-44882.

When was CVE-2023-40289 published?

CVE-2023-40289 was published on 2024-03-27 and last updated on 2026-06-17.

CVE-2023-40289

CVE-2023-40289 is a high-severity vulnerability in Supermicro X11ssm-f Firmware with a CVSS 3.x base score of 7.2. Its EPSS exploit-prediction score of 18% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-269.

Key facts

Severity: High (CVSS 3.x base score 7.2)
EPSS exploit prediction: 18% (97th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-44882
Weakness: CWE-269
Affected product: Supermicro X11ssm-f Firmware
Published: 2024-03-27
Last modified: 2026-06-17

Description

A command injection issue was discovered on Supermicro X11SSM-F, X11SAE-F, and X11SSE-F 1.66 devices. An attacker can exploit this to elevate privileges from a user with BMC administrative privileges.

Frequently asked questions

What is CVE-2023-40289?: A command injection issue was discovered on Supermicro X11SSM-F, X11SAE-F, and X11SSE-F 1.66 devices. An attacker can exploit this to elevate privileges from a user with BMC administrative privileges.
How severe is CVE-2023-40289?: CVE-2023-40289 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-40289 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 18% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-40289?: CVE-2023-40289 primarily affects Supermicro X11ssm-f Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-40289?: 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.
Does CVE-2023-40289 have an EU (EUVD) identifier?: Yes. CVE-2023-40289 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-44882.
When was CVE-2023-40289 published?: CVE-2023-40289 was published on 2024-03-27 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:supermicro:x11ssm-f_firmware:1.66:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x11sae-f_firmware:1.66:*:*:*:*:*:*:*
cpe:2.3:o:supermicro:x11sse-f_firmware:1.66:*:*:*:*:*:*:*

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