{"id":"CVE-2026-41034","state":"PUBLISHED","title":"ONLYOFFICE DocumentServer before 9.3.0 has an untrusted pointer dereference in XLS processing/conversion (via pictFmla.cbBufInCtlStm and other vectors), leading to an information l","description":"ONLYOFFICE DocumentServer before 9.3.0 has an untrusted pointer dereference in XLS processing/conversion (via pictFmla.cbBufInCtlStm and other vectors), leading to an information leak and ASLR bypass.","publishedAt":"2026-04-16T06:06:44.570Z","updatedAt":"2026-04-16T12:31:05.251Z","severity":{"score":5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","source":"mitre"},"assigner":"mitre","products":["Ascensio ONLYOFFICE DocumentServer"],"affected":[{"vendor":"Ascensio","product":"ONLYOFFICE DocumentServer","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"9.3.0","versionType":"semver"}]}],"references":["https://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md"],"weaknesses":["CWE-125"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/41xxx/CVE-2026-41034.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-41034","state":"PUBLISHED","datePublished":"2026-04-16T06:06:44.570Z","dateUpdated":"2026-04-16T12:31:05.251Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2026-04-16T06:06:44.178Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"ONLYOFFICE DocumentServer before 9.3.0 has an untrusted pointer dereference in XLS processing/conversion (via pictFmla.cbBufInCtlStm and other vectors), leading to an information leak and ASLR bypass."}],"affected":[{"vendor":"Ascensio","product":"ONLYOFFICE DocumentServer","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"9.3.0","versionType":"semver"}]}],"references":[{"url":"https://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md"}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","description":"CWE-125 Out-of-bounds Read","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2026-04-16T06:13:45.134Z"},"x_generator":{"engine":"CVE-Request-form 0.0.1"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-16T12:20:07.491049Z","id":"CVE-2026-41034","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-16T12:31:05.251Z"}}]}}}