{"id":"CVE-2026-20797","state":"PUBLISHED","title":"Copeland XWEB and XWEB Pro Stack-based Buffer Overflow","description":"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.","publishedAt":"2026-02-27T01:03:18.783Z","updatedAt":"2026-05-10T13:30:10.603Z","severity":{"score":4.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","source":"icscert"},"assigner":"icscert","products":["Copeland Copeland XWEB 300D PRO","Copeland Copeland XWEB 500D PRO","Copeland Copeland XWEB 500B PRO"],"affected":[{"vendor":"Copeland","product":"Copeland XWEB 300D PRO","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.12.1","versionType":"custom"}]},{"vendor":"Copeland","product":"Copeland XWEB 500D PRO","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.12.1","versionType":"custom"}]},{"vendor":"Copeland","product":"Copeland XWEB 500B PRO","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.12.1","versionType":"custom"}]}],"references":["https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate","https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-10","https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-10.json"],"weaknesses":["CWE-121"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/20xxx/CVE-2026-20797.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-20797","state":"PUBLISHED","datePublished":"2026-02-27T01:03:18.783Z","dateUpdated":"2026-05-10T13:30:10.603Z","assignerShortName":"icscert","assignerOrgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","dateReserved":"2026-02-05T16:47:16.578Z"},"containers":{"cna":{"title":"Copeland XWEB and XWEB Pro Stack-based Buffer Overflow","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."}],"affected":[{"vendor":"Copeland","product":"Copeland XWEB 300D PRO","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.12.1","versionType":"custom"}]},{"vendor":"Copeland","product":"Copeland XWEB 500D PRO","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.12.1","versionType":"custom"}]},{"vendor":"Copeland","product":"Copeland XWEB 500B PRO","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.12.1","versionType":"custom"}]}],"references":[{"url":"https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate"},{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-10"},{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-10.json"}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"LOW","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"description":"WE-121","lang":"en"}]}],"providerMetadata":{"shortName":"icscert","orgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","dateUpdated":"2026-02-27T01:03:18.783Z"},"credits":[{"lang":"en","type":"finder","value":"Amir Zaltzman and Noam Moshe of Claroty Team82 reported this vulnerability to CISA."}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Copeland has provided a fix for the vulnerabilities and recommends users\n update the XWEB Pro to the latest version by going to their software \nupdate page \n<a target=\"_blank\" rel=\"nofollow\" href=\"https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate\">https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate</a> in the \nsections dedicated to the different XWEBPRO models page.\n\n<br>"}],"value":"Copeland has provided a fix for the vulnerabilities and recommends users\n update the XWEB Pro to the latest version by going to their software \nupdate page \n https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate  in the \nsections dedicated to the different XWEBPRO models page."},{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Alternatively, a user logged into an XWEB Pro with internet access can \nupdate XWEB Pro directly from Copeland servers via the menu SYSTEM -- \nUpdates | Network.\n\n<br>"}],"value":"Alternatively, a user logged into an XWEB Pro with internet access can \nupdate XWEB Pro directly from Copeland servers via the menu SYSTEM -- \nUpdates | Network."}],"source":{"advisory":"ICSA-26-057-10","discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-02T14:25:26.397993Z","id":"CVE-2026-20797","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-121","type":"CWE","lang":"en","description":"CWE-121 Stack-based Buffer Overflow"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-10T13:30:10.603Z"}}]}}}