CVE-2022-23959
Critical
Published: 26 January 2022
Published
26 January 2022
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1
9.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS Score
0.0034
57.4th percentile
Risk Priority
18
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2022-23959 is a critical-severity HTTP Request/Response Smuggling (CWE-444) vulnerability in Varnish-Software Varnich Cache. Its CVSS base score is 9.1 (Critical).
Operationally, ranked in the top 42.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-28875
Vulnerability details
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.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
varnish-software
varnich cache
4.1 · 1.0.0 — 6.6.2 · 4.1.1 — 4.1.11r6
varnish-software
varnish cache
6.0.0 — 6.0.10
varnish-software
varnish cache plus
6.0.0 — 6.0.9r4
varnish cache project
varnish cache
7.0.0 — 7.0.2
fedoraproject
fedora
35
debian
debian linux
10.0, 11.0, 9.0
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.