VULNERABILITY INTELLIGENCE

CVE-2019-9512

CVSS score7.5 HIGH
EPSS probability83.43%
CISA KEVNot currently listed
Published2019-08-13
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

Some HTTP/2 implementations are vulnerable to ping floods, potentially leading to a denial of service. The attacker sends continual pings to an HTTP/2 peer, causing the peer to build an internal queue of responses. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.

Weakness classification

  • CWE-400: Uncontrolled Resource Consumption

Primary references