CVE-2022-38150

Name: CVE-2022-38150
Creator: NVD / NIST
Published: 2022-08-11T01:15:10.847+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.14%

Last modified Jun 17, 2026

CVE-2022-38150 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In Varnish Cache 7.0.0, 7.0.1, 7.0.2, and 7.1.0, it is possible to cause the Varnish Server to assert and automatically restart through forged HTTP/1 backend responses. An attack uses a crafted reason phrase of the backend response status line. EPSS estimates a 1.14% chance of exploitation in the next 30 days.

Description

In Varnish Cache 7.0.0, 7.0.1, 7.0.2, and 7.1.0, it is possible to cause the Varnish Server to assert and automatically restart through forged HTTP/1 backend responses. An attack uses a crafted reason phrase of the backend response status line. This is fixed in 7.0.3 and 7.1.1.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.14%

62.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-400

Affected Software

Vendor	Product	Versions
Varnish Cache Project	Varnish Cache	7.0.0
Varnish Cache Project	Varnish Cache	7.0.1
Varnish Cache Project	Varnish Cache	7.0.2
Varnish Cache Project	Varnish Cache	7.1.0
Fedoraproject	Fedora	35
Fedoraproject	Fedora	36

References

Timeline

Published: Aug 11, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-38150?

How severe is CVE-2022-38150?

CVE-2022-38150 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.14% probability of exploitation in the next 30 days.

How do I fix CVE-2022-38150?

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-2022-38150?

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

Scan your code now

Source: NVD / NIST