{"id":"CVE-2026-28763","published":"2026-10-20T21:17:18Z","modified":"2026-10-28T20:17:23Z","title":"A stack-based buffer overflow vulnerability exists in the boa formMapDelDevice hostname functionality of X2000R…","vendor":"totolink","product":"Totolink","tier":"core","eol":null,"description":{"text":"A stack-based buffer overflow vulnerability exists in the boa formMapDelDevice hostname 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 this vulnerability.","provenance":"source","from":"NVD"},"summary":{"text":"A stack-based buffer overflow in the boa web server's formMapDelDevice hostname handling in the Totolink X2000R router firmware allows a specially crafted HTTP request to overflow the stack. An attacker needs to be able to send an authenticated HTTP request to the device, and successful exploitation can lead to arbitrary code execution.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:17:32Z"},"cvss":{"score":9.1,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.00737,"percentile":0.54457,"date":"2026-10-30","provenance":"source"},"kev":null,"vulncheckKev":null,"exploited":false,"otx":{"pulseCount":6,"pulses":[{"name":"Known_Cve | Oct 29, 2026 | Part 1/3","url":"https://otx.alienvault.com/pulse/6ae20c23cd267c7cddd4e545","created":"2026-10-28"},{"name":"Known_Cve | Oct 28, 2026 | Part 1/3","url":"https://otx.alienvault.com/pulse/6ae0ba88997d8920e9952075","created":"2026-10-27"},{"name":"Known_Cve | Oct 27, 2026 | Part 1/3","url":"https://otx.alienvault.com/pulse/6adf68beabc3bad24a2b7cc6","created":"2026-10-26"},{"name":"Known_Cve | Oct 24, 2026 | Part 2/3","url":"https://otx.alienvault.com/pulse/6adb741adaae4be68dd04fea","created":"2026-10-23"},{"name":"Known_Cve | Oct 23, 2026 | Part 2/3","url":"https://otx.alienvault.com/pulse/6ada237de8198eb6a6cbfac4","created":"2026-10-22"},{"name":"Known_Cve | Oct 22, 2026 | Part 3/4","url":"https://otx.alienvault.com/pulse/6ad8d34cb141a6cceeba88be","created":"2026-10-21"}],"provenance":"machine"},"cwes":[{"id":"CWE-121","name":"Stack-based Buffer Overflow"}],"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2026-2389","tags":[]}],"techniques":[],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2026-105350","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-105350","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[],"timeline":[{"date":"2026-10-20","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-28763","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":null},"priority":{"score":19.2,"factors":[{"name":"In a KEV catalog","points":0.0,"detail":"not listed"},{"name":"Recent KEV listing","points":0.0,"detail":"not listed"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":10.89,"detail":"percentile 0.5446"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":0.0,"detail":"none found"},{"name":"Mentioned in OTX pulses","points":1.92,"detail":"6 pulses"},{"name":"CVSS severity","points":6.37,"detail":"base score 9.1"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}