What is CVE-2023-0845?

CVE-2023-0845 is a medium-severity vulnerability in Hashicorp Consul, classified under NULL Pointer Dereference. CVSS score: 4.9/10. Published 2023-03-09.

How severe is CVE-2023-0845?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Is CVE-2023-0845 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

NULL pointer dereference in Hashicorp Consul

CVE-2023-0845

Consul and Consul Enterprise allowed an authenticated user with service:write permissions to trigger a workflow that causes Consul server and client agents to crash under certain circumstances. This vulnerability was fixed in Consul 1.14.5.

Published 2023-03-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.010 (62.6th percentile), scored 2026-10-23.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 62.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Hashicorp Consul — versions 1.14.0, 1.14.1, 1.14.2
Hashicorp Consul Enterprise — versions 1.14.0, 1.14.1, 1.14.2

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

Public proof-of-concept exploits

tdunlap607/docker_

References

Frequently asked questions

What is CVE-2023-0845?: CVE-2023-0845 is a medium-severity vulnerability in Hashicorp Consul, classified under NULL Pointer Dereference. CVSS score: 4.9/10. Published 2023-03-09.
How severe is CVE-2023-0845?: Medium severity. CVSS v3 base score is 4.9 out of 10.
Is CVE-2023-0845 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.