{"api_version":"1","generated_at":"2026-07-24T20:01:51+00:00","cve":"CVE-2026-16157","urls":{"html":"https://cve.report/CVE-2026-16157","api":"https://cve.report/api/cve/CVE-2026-16157.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-16157","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-16157"},"summary":{"title":"Duplicati backup software v2.3.0.1 is vulnerable to an incorrect permission assignment vulnerability","description":"Duplicati v2.3.0.1 backup software gives Authenticated Users MODIFY permissions that propagate to all subdirectories. Installing the software outside of the Program Files directory, or on a custom path, creates a LocalSystem service running from a directory that any standard local user can write to. A standard local user can overwrite any DLL in the service directory. On service restart, the OS loads the attacker's DLL before any managed code runs, executing arbitrary code as SYSTEM.","state":"PUBLISHED","assigner":"certcc","published_at":"2026-07-22 18:16:55","updated_at":"2026-07-22 20:54:47"},"problem_types":["CWE-732: Incorrect Permission Assignment for Critical Resource"],"metrics":[],"references":[{"url":"https://www.kb.cert.org/vuls/id/847406","name":"https://www.kb.cert.org/vuls/id/847406","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://kb.cert.org/vuls/id/847406","name":"https://kb.cert.org/vuls/id/847406","refsource":"cret@cert.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-16157","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-16157","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Duplicati","product":"Duplicati","version":"affected 2.3.0.1","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2026-07-22T18:25:41.589Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"url":"https://www.kb.cert.org/vuls/id/847406"}],"title":"CVE Program Container"}],"cna":{"affected":[{"product":"Duplicati","vendor":"Duplicati","versions":[{"status":"affected","version":"2.3.0.1"}]}],"descriptions":[{"lang":"en","value":"Duplicati v2.3.0.1 backup software gives Authenticated Users MODIFY permissions that propagate to all subdirectories. Installing the software outside of the Program Files directory, or on a custom path, creates a LocalSystem service running from a directory that any standard local user can write to. A standard local user can overwrite any DLL in the service directory. On service restart, the OS loads the attacker's DLL before any managed code runs, executing arbitrary code as SYSTEM."}],"problemTypes":[{"descriptions":[{"description":"CWE-732: Incorrect Permission Assignment for Critical Resource","lang":"en"}]}],"providerMetadata":{"dateUpdated":"2026-07-22T17:29:25.278Z","orgId":"37e5125f-f79b-445b-8fad-9564f167944b","shortName":"certcc"},"references":[{"url":"https://kb.cert.org/vuls/id/847406"}],"source":{"discovery":"UNKNOWN"},"title":"Duplicati backup software v2.3.0.1 is vulnerable to an incorrect permission assignment vulnerability","x_generator":{"engine":"VINCE 3.0.43","env":"prod","origin":"https://cveawg.mitre.org/api/cve/CVE-2026-16157"}}},"cveMetadata":{"assignerOrgId":"37e5125f-f79b-445b-8fad-9564f167944b","assignerShortName":"certcc","cveId":"CVE-2026-16157","datePublished":"2026-07-22T17:29:25.278Z","dateReserved":"2026-07-17T19:45:55.953Z","dateUpdated":"2026-07-22T18:25:41.589Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-22 18:16:55","lastModifiedDate":"2026-07-22 20:54:47","problem_types":["CWE-732: Incorrect Permission Assignment for Critical Resource"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"16157","Ordinal":"1","Title":"Duplicati backup software v2.3.0.1 is vulnerable to an incorrect","CVE":"CVE-2026-16157","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"16157","Ordinal":"1","NoteData":"Duplicati v2.3.0.1 backup software gives Authenticated Users MODIFY permissions that propagate to all subdirectories. Installing the software outside of the Program Files directory, or on a custom path, creates a LocalSystem service running from a directory that any standard local user can write to. A standard local user can overwrite any DLL in the service directory. On service restart, the OS loads the attacker's DLL before any managed code runs, executing arbitrary code as SYSTEM.","Type":"Description","Title":"Duplicati backup software v2.3.0.1 is vulnerable to an incorrect"}]}}}