{"id":"CVE-2025-41767","state":"PUBLISHED","title":"Signature bypass on update upload","description":"A high-privileged remote attacker can fully compromise the device by abusing an update signature bypass vulnerability in the wwwupdate.cgi method in the web interface of UBR.","publishedAt":"2026-03-09T08:18:17.428Z","updatedAt":"2026-03-09T18:19:09.365Z","severity":{"score":7.2,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","source":"CERTVDE"},"assigner":"CERTVDE","products":["MBS UBR-01 Mk II","MBS UBR-02","MBS UBR-LON"],"affected":[{"vendor":"MBS","product":"UBR-01 Mk II","defaultStatus":"unaffected","versions":[{"version":"0.0.0","status":"affected","lessThan":"6.0.1.0","versionType":"semver"}]},{"vendor":"MBS","product":"UBR-02","defaultStatus":"unaffected","versions":[{"version":"0.0.0","status":"affected","lessThan":"6.0.1.0","versionType":"semver"}]},{"vendor":"MBS","product":"UBR-LON","defaultStatus":"unaffected","versions":[{"version":"0.0.0","status":"affected","lessThan":"6.0.1.0","versionType":"semver"}]}],"references":["https://www.mbs-solutions.de/mbs-2025-0001"],"weaknesses":["CWE-347"],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/41xxx/CVE-2025-41767.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-41767","state":"PUBLISHED","datePublished":"2026-03-09T08:18:17.428Z","dateUpdated":"2026-03-09T18:19:09.365Z","assignerShortName":"CERTVDE","assignerOrgId":"270ccfa6-a436-4e77-922e-914ec3a9685c","dateReserved":"2025-04-16T11:18:45.761Z"},"containers":{"cna":{"title":"Signature bypass on update upload","descriptions":[{"lang":"en","value":"A high-privileged remote attacker can fully compromise the device by abusing an update signature bypass vulnerability in the wwwupdate.cgi method in the web interface of UBR."}],"affected":[{"vendor":"MBS","product":"UBR-01 Mk II","defaultStatus":"unaffected","versions":[{"version":"0.0.0","status":"affected","lessThan":"6.0.1.0","versionType":"semver"}]},{"vendor":"MBS","product":"UBR-02","defaultStatus":"unaffected","versions":[{"version":"0.0.0","status":"affected","lessThan":"6.0.1.0","versionType":"semver"}]},{"vendor":"MBS","product":"UBR-LON","defaultStatus":"unaffected","versions":[{"version":"0.0.0","status":"affected","lessThan":"6.0.1.0","versionType":"semver"}]}],"references":[{"url":"https://www.mbs-solutions.de/mbs-2025-0001"}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.2,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-347","description":"CWE-347 Improper Verification of Cryptographic Signature","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"CERTVDE","orgId":"270ccfa6-a436-4e77-922e-914ec3a9685c","dateUpdated":"2026-03-09T08:18:17.428Z"},"credits":[{"lang":"en","type":"finder","user":"00000000-0000-4000-9000-000000000000","value":"Adrien Rey from Cyber Defense Campus Zurich"},{"lang":"en","type":"finder","user":"00000000-0000-4000-9000-000000000000","value":"Daniel Hulliger from Armasuisse"}],"source":{"defect":["CERT@VDE#641895"],"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-09T18:18:54.140033Z","id":"CVE-2025-41767","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-09T18:19:09.365Z"}}]}}}