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CVE-2026-62947

4.9 · MEDIUM

OpenWrt is a Linux operating system targeting embedded devices.

Published Jul 15, 2026CWE-22EPSS 0.52%

Overview

CVE-2026-62947 is a medium-severity vulnerability. It was published on July 15, 2026 and has a CVSS 3.1 base score of 4.9 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.9, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

OpenWrt is a Linux operating system targeting embedded devices. Prior to 25.12.5, the cgi-download handler in cgi-io authorizes the requested path against the caller's ubus session file ACL before canonicalization, and rpcd session.c uses fnmatch() without FNM_PATHNAME, allowing traversal such as an allowed wildcard prefix followed by ../ to read root-readable files including /etc/shadow. This vulnerability is fixed in 25.12.5.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/openwrt/cgi-io/commit/72990b7489872112df31c94032637c907760bae4GitHubgithub.com/openwrt/cgi-io/pull/4GitHubgithub.com/openwrt/openwrt/releases/tag/v25.12.5GitHubgithub.com/openwrt/openwrt/security/advisories/GHSA-jw5r-xhf5-2xcqGitHubgithub.com/openwrt/openwrt/security/advisories/GHSA-jw5r-xhf5-2xcq

How CyberStrike helps

Frequently asked questions

What is CVE-2026-62947?

CVE-2026-62947 is a medium-severity vulnerability. It was published on July 15, 2026 and has a CVSS 3.1 base score of 4.9 (MEDIUM).

How severe is CVE-2026-62947?

This vulnerability has a CVSS 3.1 base score of 4.9, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-62947?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-62947?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-62947 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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