How severe is CVE-2025-8404?

CVE-2025-8404 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability high.

Is CVE-2025-8404 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-8404?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-8404 have an EU (EUVD) identifier?

Yes. CVE-2025-8404 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-197953.

When was CVE-2025-8404 published?

CVE-2025-8404 was published on 2025-11-18 and last updated on 2026-06-17.

CVE-2025-8404

CVE-2025-8404 is a medium-severity vulnerability with a CVSS 3.x base score of 5.5. 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-121.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-197953
Weakness: CWE-121
Published: 2025-11-18
Last modified: 2026-06-17

Description

Stack buffer overflow vulnerability exists in the Supermicro BMC Shared library. An authenticated attacker with access to the BMC exploit stack buffer via a crafted header and achieve arbitrary code execution of the BMC’s firmware operating system.

Frequently asked questions

What is CVE-2025-8404?: Stack buffer overflow vulnerability exists in the Supermicro BMC Shared library. An authenticated attacker with access to the BMC exploit stack buffer via a crafted header and achieve arbitrary code execution of the BMC’s firmware operating system.
How severe is CVE-2025-8404?: CVE-2025-8404 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability high.
Is CVE-2025-8404 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-8404?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-8404 have an EU (EUVD) identifier?: Yes. CVE-2025-8404 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-197953.
When was CVE-2025-8404 published?: CVE-2025-8404 was published on 2025-11-18 and last updated on 2026-06-17.

References

https://www.supermicro.com/zh_tw/support/security_BMC_IPMI_Nov_2025

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