How severe is CVE-2020-25201?

CVE-2020-25201 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-2020-25201 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-25201?

CVE-2020-25201 affects Hashicorp Consul. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-25201?

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.

When was CVE-2020-25201 published?

CVE-2020-25201 was published on 2020-11-04 and last updated on 2026-06-17.

CVE-2020-25201

CVE-2020-25201 is a high-severity vulnerability in Hashicorp Consul 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.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Hashicorp Consul
Published: 2020-11-04
Last modified: 2026-06-17

Description

HashiCorp Consul Enterprise version 1.7.0 up to 1.8.4 includes a namespace replication bug which can be triggered to cause denial of service via infinite Raft writes. Fixed in 1.7.9 and 1.8.5.

Frequently asked questions

What is CVE-2020-25201?: HashiCorp Consul Enterprise version 1.7.0 up to 1.8.4 includes a namespace replication bug which can be triggered to cause denial of service via infinite Raft writes. Fixed in 1.7.9 and 1.8.5.
How severe is CVE-2020-25201?: CVE-2020-25201 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-2020-25201 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-25201?: CVE-2020-25201 affects Hashicorp Consul. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-25201?: 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.
When was CVE-2020-25201 published?: CVE-2020-25201 was published on 2020-11-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:*

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