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P4Verified

CVE-2026-8023: zephyr from 4.0.0 (inclusive), through 4.4.1 (inclusive), 4.0.0 to before 4.3.1, 4.4.0 to before 4.4.2

CVE-2026-8023. CVSS 3.1 base score 7.5 (HIGH, Vendor/CNA). EPSS 0.0087 (percentile 0.57912), scored 14-Oct-2026.

Affected technology

zephyr · from 4.0.0 (inclusive), through 4.4.1 (inclusive)
zephyrproject

zephyr · 4.0.0 to before 4.3.1, 4.4.0 to before 4.4.2
zephyrproject

Component: Not specified by the source
File: subsys/net/lib/http/headers/server_internal.h, subsys/net/lib/http/http_server_core.c, subsys/net/lib/http/http_server_http1.c, subsys/net/lib/http/http_server_http2.c

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

What an attacker can do

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

Published

CWE
CWE-22, CWE-23
CCR priority
30.2 /100 (P4)
CVSS 3.1
7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N · Vendor/CNA
EPSS
0.0087 · percentile 0.57912 · 2026-10-14
KEV
no

Provenance

Stable permalink: https://cybercodered.org/item/cve-cve-2026-8023.html