{"cve":{"cve_id":"CVE-2026-62948","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.0058,"epss_percentile":0.45187,"epss_as_of":"2026-08-26","description":"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.","published_at":"2026-07-15T17:50:43.790000Z","last_modified_at":"2026-07-21T16:06:30.357000Z","cvss_v3_score":9.6,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","cvss_v3_severity":"CRITICAL","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":"poc","ssvc_automatable":false,"ssvc_technical_impact":"total","cwes":["CWE-79","CWE-117","CWE-150"],"nvd_references":["https://github.com/openwrt/openwrt/security/advisories/GHSA-hhmc-92hw-535f","https://github.com/openwrt/odhcpd/pull/404","https://github.com/openwrt/luci/commit/55379d04fcc3c605003a5001d6135cf02ae6048a","https://github.com/openwrt/odhcpd/commit/68f382690bfaec56d5b1f31c3c31c48bcb642e3a","https://github.com/openwrt/openwrt/releases/tag/v25.12.5"],"vuln_status":"Analyzed","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-07-15T18:34:20.785243Z","updated_at":"2026-07-21T22:29:00.913509Z"},"effective_severity":"CRITICAL","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"R","value_label":"Required"},{"metric":"S","name":"Scope","value":"C","value_label":"Changed"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"openwrt","vendor_name":"openwrt","product_slug":"openwrt","product_name":"openwrt","version_start":"< 25.12.5","version_start_inclusive":true,"version_end":"< 25.12.5","version_end_inclusive":true,"cpe23_uri":"cve5:openwrt:openwrt:< 25.12.5:< 25.12.5"},{"vendor_slug":"openwrt","vendor_name":"openwrt","product_slug":"openwrt","product_name":"openwrt","version_start":null,"version_start_inclusive":null,"version_end":"25.12.5","version_end_inclusive":false,"cpe23_uri":"cpe:2.3:o:openwrt:openwrt:*:*:*:*:*:*:*:*"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/openwrt/openwrt/security/advisories/GHSA-hhmc-92hw-535f","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://github.com/openwrt/odhcpd/pull/404","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/openwrt/luci/commit/55379d04fcc3c605003a5001d6135cf02ae6048a","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/openwrt/odhcpd/commit/68f382690bfaec56d5b1f31c3c31c48bcb642e3a","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/openwrt/openwrt/releases/tag/v25.12.5","source_type":"PATCH","tags":["patch"]}],"timeline":[{"type":"published","at":"2026-07-15T17:50:43.790000Z","label":"CVE published","source":null}]}