{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-42026","assignerOrgId":"b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b","state":"PUBLISHED","assignerShortName":"talos","dateReserved":"2026-04-23T14:20:27.853Z","datePublished":"2026-10-20T20:25:23.155Z","dateUpdated":"2026-10-23T22:08:36.350Z"},"containers":{"cna":{"affected":[{"vendor":"totolink","product":"Totolink","versions":[{"status":"affected","version":"TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"Multiple exploitable stack-based buffer overflow vulnerabilities exist in the boa formIpv6Setup dhcp_dns functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger these vulnerabilities. This vulnerability concerns the dhcp_dns2 parameter."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-121: Stack-based Buffer Overflow","type":"CWE","cweId":"CWE-121"}]}],"metrics":[{"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseSeverity":"CRITICAL","baseScore":9.1,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H"}}],"providerMetadata":{"orgId":"b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b","shortName":"talos","dateUpdated":"2026-10-20T20:25:23.155Z"},"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2026-2396","name":"https://talosintelligence.com/vulnerability_reports/TALOS-2026-2396"}],"credits":[{"lang":"en","value":"Discovered by Lilith Wyatt of Cisco Talos"}]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-23T20:45:21.544819Z","id":"CVE-2026-42026","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-23T22:08:36.350Z"}}]}}