CVE-2026-20797

{"id": "CVE-2026-20797", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 2.8}, {"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2026-02-27T02:16:18.343", "references": [{"url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-10.json", "tags": ["Third Party Advisory"], "source": "[email protected]"}, {"url": "https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate", "tags": ["Product"], "source": "[email protected]"}, {"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-10", "tags": ["Third Party Advisory", "US Government Resource"], "source": "[email protected]"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "A stack based buffer overflow exists in an API route of XWEB Pro version\n 1.12.1 and prior, enabling unauthenticated attackers to cause stack \ncorruption and a termination of the program."}, {"lang": "es", "value": "Existe un desbordamiento de b\u00fafer basado en pila en una ruta de API de XWEB Pro versi\u00f3n 1.12.1 y anteriores, lo que permite a atacantes no autenticados causar corrupci\u00f3n de pila y la terminaci\u00f3n del programa."}], "lastModified": "2026-02-27T23:10:35.547", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:copeland:xweb_300d_pro_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BF93AA67-7ABF-45C8-8376-7A28F7D65464", "versionEndIncluding": "1.12.1"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:copeland:xweb_300d_pro:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "AEA10B9B-531A-4775-B32D-AC743D696126"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:copeland:xweb_500d_pro_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "088F312E-06DF-4B90-A478-A6B5A39DE0F0", "versionEndIncluding": "1.12.1"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:copeland:xweb_500d_pro:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A524988E-E22F-4B0F-AEE6-46B3F103989C"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:copeland:xweb_500b_pro_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E13AD164-C82A-4D6C-84C0-83EB8B0A611C", "versionEndIncluding": "1.12.1"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:copeland:xweb_500b_pro:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "1707F67B-6365-4065-812C-7CC596C6CFF1"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "[email protected]"}