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Vulnerability DatabaseCVE-2020-25201

CVE-2020-25201: 
Consul vulnerability analysis and mitigation

Overview

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. The vulnerability was assigned CVE-2020-25201 and was fixed in versions 1.7.9 and 1.8.5 (NVD, Gentoo Advisory).

Technical details

The vulnerability has a CVSS v3.1 base score of 7.5 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. The CVSS v2.0 base score is 5.0 (MEDIUM) with vector (AV:N/AC:L/Au:N/C:N/I:N/A:P) (NVD).

Impact

The vulnerability can result in denial of service through infinite Raft writes in the namespace replication functionality. This affects the availability of the Consul Enterprise service (NVD).

Exploitability

The vulnerability can be triggered remotely and requires no authentication or user interaction to exploit, as indicated by the CVSS vector string parameters AV:N/AC:L/PR:N/UI:N (NVD).

Mitigation and workarounds

The vulnerability was fixed in Consul Enterprise versions 1.7.9 and 1.8.5. Users should upgrade to these or later versions to mitigate the issue (NVD, Gentoo Advisory).

Additional resources

Source: This report was generated using AI

Related Consul vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-87090HIGH8.3
  • Consul logoConsul
  • cpe:2.3:a:hashicorp:consul
NoYesSep 10, 2026
CVE-2026-88021HIGH7.1
  • Consul logoConsul
  • consul
NoYesSep 10, 2026
CVE-2026-87106MEDIUM6.5
  • Consul logoConsul
  • cpe:2.3:a:hashicorp:consul
NoYesSep 10, 2026
CVE-2026-87107MEDIUM5.4
  • Consul logoConsul
  • cpe:2.3:a:hashicorp:consul
NoYesSep 10, 2026
CVE-2026-19113MEDIUM5.3
  • Consul logoConsul
  • consul-2.0
NoYesAug 07, 2026

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