No exploitation reportedFix available

CVE-2020-12797

Q: Is CVE-2020-12797 actively exploited?

Active exploitation of CVE-2020-12797 has not been confirmed. Its EPSS score was 1.5% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2020-12797?

CVE-2020-12797 has a CVSS v3 base score of 5.3 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

No exploitation reported by the sources we read.

Published2020-06-11
Fixed in1.7.4 · 1.6.7 · 1.6.6

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

HashiCorp Consul and Consul Enterprise failed to enforce changes to legacy ACL token rules due to non-propagation to secondary data centers. Introduced in 1.4.0, fixed in 1.6.6 and 1.7.4.

Timeline

dates in UTC

2020-06-1120:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-12797?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-12797?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV

Hashicorp consul

Branch	Affected	Fixed in	Source
1.7	≥ 1.7.0, < 1.7.4	1.7.4	NVD · OSV
1.x	≥ 1.4.0, < 1.6.7	1.6.7	OSV
1.x	≥ 1.4.0, < 1.6.6	1.6.6	NVD
1.6	≥ 1.6.0, < 1.6.6	1.6.6	OSV
1.x	≥ 1.4.0, ≤ 1.6.6	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Hashicorp consul to 1.7.4 · 1.6.7 · 1.6.6

Advisories and patches

github.comRelease Notes
github.comRelease Notes
github.comPatch

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.15.3read 2026-10-23
NVDCVSS 2.05read 2026-10-23
FIRST EPSSEPSS score1.5 %2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Published: 2020-06-11
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2020-12797?

HashiCorp Consul and Consul Enterprise failed to enforce changes to legacy ACL token rules due to non-propagation to secondary data centers. Introduced in 1.4.0, fixed in 1.6.6 and 1.7.4.

Is CVE-2020-12797 actively exploited?

Active exploitation of CVE-2020-12797 has not been confirmed. Its EPSS score was 1.5% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-12797?

CVE-2020-12797 has a CVSS v3 base score of 5.3 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

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