CVE-2019-9514CWE-400

Some HTTP/2 implementations are vulnerable to a reset flood, 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 a reset flood, potentially leading to a denial of service. The attacker opens a number of streams and sends an invalid request over each stream that should solicit a stream of RST_STREAM frames from the peer. Depending on how the peer queues the RST_STREAM frames, this can consume excess memory, CPU, 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
0.82813 · 99.7th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2019-08-13T00:00Z
EPSS history
Timeline
  • 13 AUG 00:00Z
    Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service
    cvelistv5