Is CVE-2026-30874 actively exploited?

No active exploitation of CVE-2026-30874 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-30874 be exploited remotely?

No. CVE-2026-30874 requires local access to exploit.

What is the CVSS score of CVE-2026-30874?

CVE-2026-30874 has a CVSS score of 7.8 (HIGH).

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HIGH

CVE-2026-30874

CWE-74Published: March 19, 2026· Updated: Mar 23, 2026

7.8

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:1.0th

Official Description

OpenWrt Project is a Linux operating system targeting embedded devices. In versions prior to 24.10.6, a vulnerability in the hotplug_call function allows an attacker to bypass environment variable filtering and inject an arbitrary PATH variable, potentially leading to privilege escalation. The function is intended to filter out sensitive environment variables like PATH when executing hotplug scripts in /etc/hotplug.d, but a bug using strcmp instead of strncmp causes the filter to compare the full environment string (e.g., PATH=/some/value) against the literal "PATH", so the match always fails. As a result, the PATH variable is never excluded, enabling an attacker to control which binaries are executed by procd-invoked scripts running with elevated privileges. This issue has been fixed in version 24.10.6.

NVD Source

Technical Analysis

CVE-2026-30874 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.