How severe is CVE-2025-4656?

CVE-2025-4656 has a CVSS 3.x base score of 3.1, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2025-4656 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-4656?

CVE-2025-4656 primarily affects Hashicorp Vault. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-4656?

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

Does CVE-2025-4656 have an EU (EUVD) identifier?

Yes. CVE-2025-4656 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-28064.

When was CVE-2025-4656 published?

CVE-2025-4656 was published on 2025-06-25 and last updated on 2026-06-17.

CVE-2025-4656

CVE-2025-4656 is a low-severity vulnerability in Hashicorp Vault with a CVSS 3.x base score of 3.1. 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-1088.

Key facts

Severity: Low (CVSS 3.x base score 3.1)
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-28064
Weakness: CWE-1088
Affected product: Hashicorp Vault
Published: 2025-06-25
Last modified: 2026-06-17

Description

Vault Community and Vault Enterprise rekey and recovery key operations can lead to a denial of service due to uncontrolled cancellation by a Vault operator. This vulnerability (CVE-2025-4656) has been remediated in Vault Community Edition 1.20.0 and Vault Enterprise 1.20.0, 1.19.6, 1.18.11, 1.17.17, and 1.16.22.

Frequently asked questions

What is CVE-2025-4656?: Vault Community and Vault Enterprise rekey and recovery key operations can lead to a denial of service due to uncontrolled cancellation by a Vault operator. This vulnerability (CVE-2025-4656) has been remediated in Vault Community Edition 1.20.0 and Vault Enterprise 1.20.0, 1.19.6, 1.18.11, 1.17.17, and 1.16.22.
How severe is CVE-2025-4656?: CVE-2025-4656 has a CVSS 3.x base score of 3.1, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2025-4656 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-4656?: CVE-2025-4656 primarily affects Hashicorp Vault. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-4656?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-4656 have an EU (EUVD) identifier?: Yes. CVE-2025-4656 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-28064.
When was CVE-2025-4656 published?: CVE-2025-4656 was published on 2025-06-25 and last updated on 2026-06-17.

References

https://discuss.hashicorp.com/t/hcsec-2025-11-vault-vulnerable-to-recovery-key-cancellation-denial-of-service/75570

Affected products (2)

cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:hashicorp:vault:*:*:*:*:-:*:*:*

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