CVEsopnsenseCVE-2026-119424Published Oct 30, 11:30 · Updated Oct 30, 11:30 UTC
6.8
MediumCVSS 3.1 · from VulnCheck
CVE-2026-119424

OPNsense before 26.7.8 Wireless WPA Configuration Line Injection via Identity

core · CWE-93 · CWE-93
Affectedcore
FixUpdate to 26.7.8 or newer
PublishedOct 30, 11:30 · VulnCheck
ScoredOct 30 · 6.8 · VulnCheck
Exploit code publicNone known · checked 21:18 UTC
ExploitedNone known · CISA KEV checked 22:09 UTC

What we know

No known exploitation. CISA KEV, checked 22:09 UTC.
No public exploit code known. Exploit-DB, Metasploit, Nuclei, checked 21:18 UTC.
An attacker needs network access and an account. CVSS: network, low privileges.
It only works under certain conditions, which makes it harder to pull off. CVSS: high attack complexity.
A successful attack can change data and take the service down. CVSS impact.

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.

From VulnCheck

Affected and fixed versions

ProductAffectedFixed incorebefore 26.7.826.7.8

Exploit code

Exploit-DBnone knownMetasploitnone knownNucleinone known

References

github.com/opnsense/core/commit/9f1eac0f9bdf705766ab61f9d62b9d55757fd0da · github.compatchgithub.com/opnsense/core/commit/3bbd714b4c4b60f164e2e908501f208d3eadf645 · github.compatchgithub.com/opnsense/core/blob/26.7.7/src/opnsense/mvc/app/models/OPNsense/Interfaces/Wlan.xml#L185 · github.comtechnical descriptiongithub.com/opnsense/core/blob/26.7.7/src/etc/inc/interfaces.inc#L1901 · github.comtechnical descriptionabraxaslabs.tech/research/opnsense-wlan-wpa-line · abraxaslabs.techthird party advisorygithub.com/opnsense/core · github.comproductVulnCheck Advisory: OPNsense before 26.7.8 Wireless WPA Configuration Line Injection via Identity · vulncheck.comthird party advisory

Other CVEs in core

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5.9OPNsense core through 26.7.8 NTP Configuration Injection via GPS and PPS Fudge Fields · CVE-2026-119560Oct 305.4OPNsense 26.1.6 through 26.7.7 Captive Portal Session Takeover via Forged ARP · CVE-2026-119425Oct 305.3OPNsense core before 26.7.8 Lockout IP Planting via WebGUI Login Username · CVE-2026-119423Oct 30