CVE-2025-11374

Name: CVE-2025-11374
Creator: NVD / NIST
Published: 2025-10-28T21:15:37.3+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.40%

Last modified Jun 17, 2026

CVE-2025-11374 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Consul and Consul Enterprise’s (“Consul”) key/value endpoint is vulnerable to denial of service (DoS) due to incorrect Content Length header validation. This vulnerability, CVE-2025-11374, is fixed in Consul Community Edition 1.22.0 and Consul Enterprise 1.22.0, 1.21.6, 1.20.8 and 1.18.12.. EPSS estimates a 0.40% chance of exploitation in the next 30 days.

Description

Consul and Consul Enterprise’s (“Consul”) key/value endpoint is vulnerable to denial of service (DoS) due to incorrect Content Length header validation. This vulnerability, CVE-2025-11374, is fixed in Consul Community Edition 1.22.0 and Consul Enterprise 1.22.0, 1.21.6, 1.20.8 and 1.18.12.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.40%

32.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-770

Affected Software

Vendor	Product	Versions
Hashicorp	Consul	< 1.18.12
Hashicorp	Consul	< 1.22.0
Hashicorp	Consul	>= 1.19.0, < 1.20.8
Hashicorp	Consul	>= 1.21.0, < 1.21.6

References

https://discuss.hashicorp.com/t/hcsec-2025-29-consuls-kv-endpoint-is-vulnerable-to-denial-of-service/76724Vendor Advisory

Timeline

Published: Oct 28, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-11374?

How severe is CVE-2025-11374?

CVE-2025-11374 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.

How do I fix CVE-2025-11374?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-11374?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST