PT-2026-60254 · Openwrt · Openwrt

Published 2026-07-15 · Updated 2026-07-15 · CVE-2026-62948

NVD

CVSS v3.1

9.6

Critical

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

OpenWrt is a Linux operating system targeting embedded devices. Prior to 25.12.5, odhcpd writes a DHCPv6 client FQDN option 39 hostname into /tmp/odhcpd.leases through src/statefiles.c statefiles write state6() and statefiles write state4() without escaping, allowing newline injection of forged lease lines that LuCI rpcd-mod-luci getDHCPLeases displays through htdocs/luci-static/resources/view/status/include/40 dhcp.js and htdocs/luci-static/resources/luci.js dom.append as live HTML in the Active DHCPv6 Leases admin page. This vulnerability is fixed in 25.12.5.

Exploit

Fix

XSS

Weakness Enumeration

CWE-117

CWE-79

CWE-150

Related Identifiers

CVE-2026-62948

Affected Products

Openwrt

References · 6

• 🔥 https://github.com/openwrt/openwrt/security/advisories/GHSA-hhmc-92hw-535f · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-62948 · Security Note
• https://github.com/openwrt/openwrt/releases/tag/v25.12.5 · Note
• https://github.com/openwrt/luci/commit/55379d04fcc3c605003a5001d6135cf02ae6048a · Note
• https://github.com/openwrt/odhcpd/commit/68f382690bfaec56d5b1f31c3c31c48bcb642e3a · Note
• https://github.com/openwrt/odhcpd/pull/404 · Note