Is CVE-2022-23959 actively exploited?

CVE-2022-23959 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2022-23959?

CVE-2022-23959 has a CVSS score of 9.1 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

How do I patch CVE-2022-23959?

Patch guidance is available from varnish-software security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2022-23959.

Fix CVE-2022-23959 - CRITICAL varnish-software varnich cache

Q: Which products are affected by CVE-2022-23959?

10 products: varnish-software varnich cache, varnish-software varnich cache, varnish-software varnich cache, varnish-software varnish cache, varnish-software varnish cache plus, and 5 more.

Description

In Varnish Cache before 6.6.2 and 7.x before 7.0.2, Varnish Cache 6.0 LTS before 6.0.10, and and Varnish Enterprise (Cache Plus) 4.1.x before 4.1.11r6 and 6.0.x before 6.0.9r4, request smuggling can occur for HTTP/1 connections.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: none
Weaknesses: CWE-444

Metadata

Primary Vendor: VARNISH-SOFTWARE
Published: 1/26/2022
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

varnish-software : varnich_cachevarnish-software : varnich_cachevarnish-software : varnich_cachevarnish-software : varnish_cachevarnish-software : varnish_cache_plusvarnish_cache_project : varnish_cachefedoraproject : fedoradebian : debian_linuxdebian : debian_linuxdebian : debian_linux

Remediation Guidance

Executive Summary

Cite this page

CVE-2022-23959. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2022-23959

View on NIST NVD

CVE-2022-23959 vulnerability