P4Verified

CVE-2019-16869: netty before 4.1.42 (exclusive); +4 more affected products

CVE-2019-16869. CVSS 3.1 base score 7.5 (HIGH, NVD). EPSS 0.08415 (percentile 0.94861), scored 2026-10-08.

Affected technology

netty · before 4.1.42 (exclusive)
netty

debian linux · 8.0
debian

debian linux · 9.0
debian

debian linux · 10.0
debian

ubuntu linux · 18.04
canonical

jboss enterprise application platform · 7.2
redhat

jboss enterprise application platform · 7.3
redhat

jboss enterprise application platform · 7.4
redhat

n/a · n/a
Vendor not specified by the source

Description’s affected range: before 4.1.42.Final mishandles whitespace before the colon in HTTP headers (such as a "Transfer-Encoding : chunked" line)

Component: Not specified by the source

Attack conditions (NVD, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

NVD’s CVSS 3.1 assessment (base score 7.5/10) rates confidentiality and availability impact as none; integrity impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 2026-10-09 03:15:26.895758+00:00

CWE: CWE-444
CCR priority: 32.1 /100 (P4)
CVSS 3.1: 7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N · NVD
EPSS: 0.08415 · percentile 0.94861 · 2026-10-08
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-09 03:13:32.966430+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2019-16869.html