CVE-2018-6332

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CVSS 3.1

5.9 medium

EPSS

1%p63

Published

Dec 3, 2018 (Dec 3, 2018)

Modified

Jun 17, 2026

Description

A potential denial-of-service issue in the Proxygen handling of invalid HTTP2 settings which can cause the server to spend disproportionate resources. This affects all supported versions of HHVM (3.24.3 and 3.21.7 and below) when using the proxygen server to handle HTTP2 requests.

Vendors: facebook
Products: hhvm
Weakness: CWE-400, CWE-19
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (1.1%)

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