What’s Vulnerable › Vulnerabilities

CVE-2020-12758

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-06-11 · updated 2026-06-17
• Weakness: CWE-404

Description

HashiCorp Consul and Consul Enterprise could crash when configured with an abnormally-formed service-router entry. Introduced in 1.6.0, fixed in 1.6.6 and 1.7.4.

Affected products

• HashiCorp Consul: from 1.6.0 before 1.6.6; from 1.7.0 before 1.7.4 — fixed in 1.6.6, 1.7.4

How to fix

Upgrade to a fixed version: HashiCorp Consul 1.6.6, 1.7.4. Check the vendor advisory for mitigations.

References

• https://github.com/hashicorp/consul/blob/v1.6.6/CHANGELOG.md
• https://github.com/hashicorp/consul/blob/v1.7.4/CHANGELOG.md
• https://github.com/hashicorp/consul/pull/7783
• https://github.com/hashicorp/consul/blob/v1.6.6/CHANGELOG.md
• https://github.com/hashicorp/consul/blob/v1.7.4/CHANGELOG.md
• https://github.com/hashicorp/consul/pull/7783

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