VULNERABILITY INTELLIGENCE

CVE-2026-62947

CVSS score4.9 MEDIUM
EPSS probability0.52%
CISA KEVNot currently listed
Published2026-07-15
Last modified2026-07-21
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

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.

Weakness classification

  • security-advisories@github.com: CWE-22

Primary references