CVE-2018-11763

—

CVSS 3.0

5.9 medium

EPSS

51%p99

Published

Sep 25, 2018 (Sep 25, 2018)

Modified

Jun 17, 2026

Description

In Apache HTTP Server 2.4.17 to 2.4.34, by sending continuous, large SETTINGS frames a client can occupy a connection, server thread and CPU time without any connection timeout coming to effect. This affects only HTTP/2 connections. A possible mitigation is to not enable the h2 protocol.

Vendors: apache canonical redhat oracle netapp
Products: http server, ubuntu linux, enterprise linux, enterprise manager ops center, hospitality guest access, instantis enterprisetrack, retail xstore point of service, secure global desktop, storage automation store
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (51.0%)

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