CVE-2026-62948
critical · 9.6OpenWrt 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.
9.6
CVSS
0.6%
EPSS (exploit prob.)
46th
EPSS percentile
2026-07-15
Published
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Weaknesses
CWE-79CWE-117CWE-150
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| openwrt | openwrt | < 25.12.5 |
Check a specific version with /api/v1/cve/match.
References
- https://github.com/openwrt/luci/commit/55379d04fcc3c605003a5001d6135cf02ae6048a
- https://github.com/openwrt/odhcpd/commit/68f382690bfaec56d5b1f31c3c31c48bcb642e3a
- https://github.com/openwrt/odhcpd/pull/404
- https://github.com/openwrt/openwrt/releases/tag/v25.12.5
- https://github.com/openwrt/openwrt/security/advisories/GHSA-hhmc-92hw-535f
- https://github.com/openwrt/openwrt/security/advisories/GHSA-hhmc-92hw-535f
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2026-62948