{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-124005","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-11-06T18:38:38.543Z","datePublished":"2026-11-12T19:42:31.109Z","dateUpdated":"2026-11-13T14:34:10.836Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-11-13T14:34:10.836Z"},"title":"Dixell/Copeland XWEB EVO Predictable Administrator Password Generation","descriptions":[{"lang":"en","value":"XWEB EVO 4.3.0 through 5.8.8 contains a weak password generation vulnerability that allows remote attackers to derive the Administrator code-of-the-day password using only the device MAC address and date, with no server secret involved. Attackers can analyze the firmware binary xwpasswd, which itself functions as the password generator, to compute valid Administrator credentials offline and authenticate to the device without authorization. This product line reached it's end of service date in March 2026."}],"tags":["unsupported-when-assigned"],"datePublic":"2026-11-12T00:00:00.000Z","problemTypes":[{"descriptions":[{"lang":"en","description":"Use of Insufficiently Random Values","cweId":"CWE-330","type":"CWE"}]}],"affected":[{"defaultStatus":"unaffected","vendor":"Copeland","product":"XWEB EVO","versions":[{"status":"affected","version":"4.3.0","versionType":"semver","lessThanOrEqual":"5.8.8"}]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"CRITICAL","baseScore":9.2,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","version":"3.1","baseSeverity":"HIGH","baseScore":8.1,"vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}}],"references":[{"url":"https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate","name":"Software Download","tags":["patch","product"]},{"url":"https://webapps.copeland.com/dixell/Content/Pages/AdvertisingMaterials/ProductNews/XWEB%20EVO%20EoS%20-%20Product_Bulletin_March_2026.pdf","name":"End of Support Announcement","tags":["vendor-advisory"]},{"url":"https://www.vulncheck.com/advisories/dixell-copeland-xweb-evo-predictable-administrator-password-generation","name":"VulnCheck Advisory: Dixell/Copeland XWEB Predictable Administrator Password Generation","tags":["third-party-advisory"]},{"url":"https://www.vulncheck.com/blog/copeland-xweb-evo-unauthenticated-root","name":"VulnCheck Blog","tags":["technical-description","exploit"]}],"credits":[{"lang":"en","value":"Valentin Lobstein (Chocapikk)","type":"finder"}],"timeline":[{"time":"2026-10-19T16:39:00.000Z","lang":"en","value":"VulnCheck CVD team reported to Copeland PSIRT"},{"time":"2026-10-19T17:11:00.000Z","lang":"en","value":"Copeland PSIRT acknowledged receipt"},{"time":"2026-11-05T19:13:00.000Z","lang":"en","value":"Copeland PSIRT follows up stating that given the EOS status, they will not be carrying out a comparative analysis against previously disclosed vulnerabilities"}],"x_generator":{"engine":"vulncheck"}}}}