What is CVE-2020-12758?

CVE-2020-12758 is a high-severity vulnerability in Hashicorp Consul, classified under Improper Resource Shutdown or Release. CVSS score: 7.5/10. Published 2020-06-11.

How severe is CVE-2020-12758?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Hashicorp Consul

CVE-2020-12758

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.

Published 2020-06-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.017 (77.0th percentile), scored 2026-10-20.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Hashicorp Consul

Weakness classification (CWE)

CWE-404 — Improper Resource Shutdown or Release

References

github.com/hashicorp/consul/blob/v1.6.6/CHANGELOG.md (Third Party Advisory, Release Notes)
github.com/hashicorp/consul/blob/v1.7.4/CHANGELOG.md (Third Party Advisory, Release Notes)
github.com/hashicorp/consul/pull/7783 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2020-12758?: CVE-2020-12758 is a high-severity vulnerability in Hashicorp Consul, classified under Improper Resource Shutdown or Release. CVSS score: 7.5/10. Published 2020-06-11.
How severe is CVE-2020-12758?: High severity. CVSS v3 base score is 7.5 out of 10.