How severe is CVE-2024-47866?

CVE-2024-47866 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-47866 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-47866?

CVE-2024-47866 affects Redhat Ceph. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-47866?

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-2024-47866 have an EU (EUVD) identifier?

Yes. CVE-2024-47866 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-55069.

When was CVE-2024-47866 published?

CVE-2024-47866 was published on 2025-11-12 and last updated on 2026-06-17.

CVE-2024-47866

CVE-2024-47866 is a high-severity vulnerability in Redhat Ceph with a CVSS 3.x base score of 7.5. 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-55069
Weakness: CWE-20
Affected product: Redhat Ceph
Published: 2025-11-12
Last modified: 2026-06-17

Description

Ceph is a distributed object, block, and file storage platform. In versions up to and including 19.2.3, using the argument `x-amz-copy-source` to put an object and specifying an empty string as its content leads to the RGW daemon crashing, resulting in a DoS attack. As of time of publication, no known patched versions exist.

Frequently asked questions

What is CVE-2024-47866?: Ceph is a distributed object, block, and file storage platform. In versions up to and including 19.2.3, using the argument `x-amz-copy-source` to put an object and specifying an empty string as its content leads to the RGW daemon crashing, resulting in a DoS attack. As of time of publication, no known patched versions exist.
How severe is CVE-2024-47866?: CVE-2024-47866 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-47866 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-47866?: CVE-2024-47866 affects Redhat Ceph. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-47866?: 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-2024-47866 have an EU (EUVD) identifier?: Yes. CVE-2024-47866 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-55069.
When was CVE-2024-47866 published?: CVE-2024-47866 was published on 2025-11-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:redhat:ceph:*:*:*:*:*:*:*:*

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