CVE-2019-9512CWE-400

Some HTTP/2 implementations are vulnerable to ping floods, potentially leading to a denial of service

High · published August 13, 2019

Patch now

High probability of exploitation

CVSS calls it high at 7.5. It sits in the 99.7th percentile for exploit probability.

CVSS v3.0
7.5
EPSS
83%
Percentile
99.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.0
7.5 · HIGH
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.83433 · 99.7th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2019-08-13T20:50Z
EPSS history
Timeline
  • 13 AUG 20:50Z
    Some HTTP/2 implementations are vulnerable to ping floods, potentially leading to a denial of service
    cvelistv5