CVE-2022-23959

moderate-risk
Published 2022-01-26

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.

Do I need to act?

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0.35% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.1/10 Critical
NETWORK / LOW complexity

Affected Products (10)

Varnich Cache
Varnich Cache
Varnich Cache
Varnish Cache
Varnish Cache Plus
Varnish Cache
48
/ 100
moderate-risk
Severity 31/34 · Critical
Exploitability 1/34 · Minimal
Exposure 16/34 · Moderate