CVE-2026-119424

medium

Description

OPNsense core before 26.7.8 contains a configuration line injection vulnerability that allows authenticated users with wireless-edit privilege to inject directives by embedding CR/LF characters in WPA fields. Attackers can place newlines in wpa.identity, wpa.passphrase, or RADIUS shared secrets to append arbitrary wpa_supplicant or hostapd directives loaded by root-run daemons.

References

https://www.vulncheck.com/advisories/opnsense-before-26.7.8-wireless-wpa-configuration-line-injection-via-identity

https://github.com/opnsense/core/commit/9f1eac0f9bdf705766ab61f9d62b9d55757fd0da

https://github.com/opnsense/core/commit/3bbd714b4c4b60f164e2e908501f208d3eadf645

https://github.com/opnsense/core/blob/26.7.7/src/opnsense/mvc/app/models/OPNsense/Interfaces/Wlan.xml#L185

https://github.com/opnsense/core/blob/26.7.7/src/etc/inc/interfaces.inc#L1901

https://github.com/opnsense/core

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-113804

https://abraxaslabs.tech/research/opnsense-wlan-wpa-line

Details

Source: Mitre, NVD

Published: 2026-10-30

Updated: 2026-10-30

Risk Information

CVSS v2

Base Score: 6.6

Vector: CVSS2#AV:N/AC:H/Au:S/C:N/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 6.8

Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H

Severity: Medium

CVSS v4

Base Score: 6.1

Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.00424