How severe is CVE-2023-4855?

CVE-2023-4855 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-2023-4855 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-4855?

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-2023-4855 have an EU (EUVD) identifier?

Yes. CVE-2023-4855 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-54695.

When was CVE-2023-4855 published?

CVE-2023-4855 was published on 2024-04-15 and last updated on 2026-06-17.

CVE-2023-4855

CVE-2023-4855 is a high-severity vulnerability with a CVSS 3.x base score of 7.2. 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-78.

Key facts

Severity: High (CVSS 3.x base score 7.2)
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-54695
Weakness: CWE-78
Published: 2024-04-15
Last modified: 2026-06-17

Description

A command injection vulnerability was identified in SMM/SMM2 and FPC that could allow an authenticated user with elevated privileges to execute unauthorized commands via IPMI.

Frequently asked questions

What is CVE-2023-4855?: A command injection vulnerability was identified in SMM/SMM2 and FPC that could allow an authenticated user with elevated privileges to execute unauthorized commands via IPMI.
How severe is CVE-2023-4855?: CVE-2023-4855 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-2023-4855 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-4855?: 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-2023-4855 have an EU (EUVD) identifier?: Yes. CVE-2023-4855 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-54695.
When was CVE-2023-4855 published?: CVE-2023-4855 was published on 2024-04-15 and last updated on 2026-06-17.

References

https://support.lenovo.com/us/en/product_security/LEN-140420

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