CVE-2026-62948

{"id": "CVE-2026-62948", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-62948", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-07-15T18:08:14.354771Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.6, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "openwrt", "product": "openwrt", "versions": [{"status": "affected", "version": "< 25.12.5"}]}]}], "published": "2026-07-15T18:16:50.293", "references": [{"url": "https://github.com/openwrt/luci/commit/55379d04fcc3c605003a5001d6135cf02ae6048a", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/openwrt/odhcpd/commit/68f382690bfaec56d5b1f31c3c31c48bcb642e3a", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/openwrt/odhcpd/pull/404", "tags": ["Issue Tracking", "Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/openwrt/openwrt/releases/tag/v25.12.5", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/openwrt/openwrt/security/advisories/GHSA-hhmc-92hw-535f", "tags": ["Exploit", "Mitigation", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/openwrt/openwrt/security/advisories/GHSA-hhmc-92hw-535f", "tags": ["Exploit", "Mitigation", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-79"}, {"lang": "en", "value": "CWE-117"}, {"lang": "en", "value": "CWE-150"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-07-21T16:06:30.357", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:openwrt:openwrt:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "93C72B3E-525F-44C1-833C-88A85A6BB586", "versionEndExcluding": "25.12.5"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}