{"id":"CVE-2026-113364","aliases":["EUVD-2026-119798","GHSA-9cm3-cgv8-62mc"],"status":"published","title":"Buffer Overflow in the data receiving process in NEC Corporation WebSAM WinShare Ver 7.5.0 and...","description":"Buffer Overflow in the data receiving process in NEC Corporation WebSAM WinShare Ver 7.5.0 and earlier, Ver 7.6.0 and Ver 7.7.0 through 7.7.2 on Windows allows a remote unauthenticated attacker to execute arbitrary code with SYSTEM privileges via a crafted packet with a malformed data size value in the protocol header.","severity":{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00761,"percentile":0.55828,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122"],"published":"2026-11-09T04:14:03Z","modified":"2026-11-09T06:30:33Z","products":[{"vendor":"nec corporation","product":"websam winshare"}],"references":[{"url":"https://jpn.nec.com/security-info/secinfo/nv26-006_en.html"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113364"},{"url":"https://github.com/advisories/GHSA-9cm3-cgv8-62mc"}],"sources":{"cve":[{"id":"CVE-2026-113364","description":"Buffer Overflow in the data receiving process in NEC Corporation WebSAM WinShare Ver 7.5.0 and earlier, Ver 7.6.0 and Ver 7.7.0 through 7.7.2 on Windows allows a remote unauthenticated attacker to execute arbitrary code with SYSTEM privileges via a crafted packet with a malformed data size value in the protocol header.","status":"published","published":"2026-11-09T04:14:03.038Z","modified":"2026-11-10T14:09:26.558Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical","assessor":"cna"}],"cwes":["CWE-122"],"updated_at":"2026-11-09T06:01:44.440852Z"}],"euvd":[{"id":"EUVD-2026-119798","description":"Buffer Overflow in the data receiving process in NEC Corporation WebSAM WinShare Ver 7.5.0 and earlier, Ver 7.6.0 and Ver 7.7.0 through 7.7.2 on Windows allows a remote unauthenticated attacker to execute arbitrary code with SYSTEM privileges via a crafted packet with a malformed data size value in the protocol header.","status":"published","published":"2026-11-09T04:14:03Z","modified":"2026-11-10T14:09:26Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical"}],"updated_at":"2026-11-09T09:16:25.212362Z"}],"ghsa":[{"id":"GHSA-9cm3-cgv8-62mc","title":"Buffer Overflow in the data receiving process in NEC Corporation WebSAM WinShare Ver 7.5.0 and...","description":"Buffer Overflow in the data receiving process in NEC Corporation WebSAM WinShare Ver 7.5.0 and earlier, Ver 7.6.0 and Ver 7.7.0 through 7.7.2 on Windows allows a remote unauthenticated attacker to execute arbitrary code with SYSTEM privileges via a crafted packet with a malformed data size value in the protocol header.","status":"published","published":"2026-11-09T06:30:26Z","modified":"2026-11-09T06:30:33Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical"}],"cwes":["CWE-122"],"updated_at":"2026-11-09T06:46:20.574784Z"}],"nvd":[{"id":"CVE-2026-113364","description":"Buffer Overflow in the data receiving process in NEC Corporation WebSAM WinShare Ver 7.5.0 and earlier, Ver 7.6.0 and Ver 7.7.0 through 7.7.2 on Windows allows a remote unauthenticated attacker to execute arbitrary code with SYSTEM privileges via a crafted packet with a malformed data size value in the protocol header.","status":"published","published":"2026-11-09T05:18:26.81Z","modified":"2026-11-12T22:11:01.153Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical","assessor":"secondary"}],"cwes":["CWE-122"],"updated_at":"2026-11-09T07:12:50.724145Z"}]}}