{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-16791","assignerOrgId":"da227ddf-6e25-4b41-b023-0f976dcaca4b","state":"PUBLISHED","assignerShortName":"lenovo","dateReserved":"2026-07-23T18:03:47.226Z","datePublished":"2026-08-04T19:47:55.096Z","dateUpdated":"2026-08-05T15:08:08.310Z"},"containers":{"cna":{"providerMetadata":{"orgId":"da227ddf-6e25-4b41-b023-0f976dcaca4b","shortName":"lenovo","dateUpdated":"2026-08-04T19:47:55.096Z"},"title":"Predictable Temporary File Symlink Vulnerability in Lenovo XClarity Essentials OneCLI","datePublic":"2026-08-04T13:00:00.000Z","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-377","description":"CWE-377: Insecure Temporary File","type":"CWE"}]}],"affected":[{"vendor":"Lenovo","product":"XClarity Essentials OneCLI","platforms":["Linux"],"versions":[{"status":"affected","version":"0","lessThan":"5.6","versionType":"custom"}],"defaultStatus":"unaffected"}],"cpeApplicability":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:lenovo:xclarity_essentials_onecli:*:*:linux:*:*:*:*:*","versionStartIncluding":"0","versionEndExcluding":"5.6"}]}]}],"descriptions":[{"lang":"en","value":"A temporary file creation vulnerability in the Linux version of Lenovo XClarity Essentials OneCLI 5.5.0 and below could allow a local low-privileged attacker to overwrite or truncate arbitrary local files with program-generated data when OneCLI is executed with elevated privileges.","supportingMedia":[{"type":"text/html","base64":false,"value":"A temporary file creation vulnerability in the Linux version of Lenovo XClarity Essentials OneCLI 5.5.0 and below could allow a local low-privileged attacker to overwrite or truncate arbitrary local files with program-generated data when OneCLI is executed with elevated privileges."}]}],"references":[{"url":"https://support.lenovo.com/us/en/solutions/ht116433","tags":["patch","release-notes","product"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"LOW","baseSeverity":"LOW","baseScore":3.9,"vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","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":"LOW","baseScore":1,"vectorString":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N"}}],"solutions":[{"lang":"en","value":"Update the Linux version of Lenovo XClarity Essentials OneCLI to the version indicated in the advisory or higher - https://support.lenovo.com/us/en/solutions/ht116433","supportingMedia":[{"type":"text/html","base64":false,"value":"Update the Linux version of Lenovo XClarity Essentials OneCLI to the version indicated in the advisory or higher - https://support.lenovo.com/us/en/solutions/ht116433"}]}],"credits":[{"lang":"en","value":"Lenovo thanks Christopher Lusk of North Echo Security Research for reporting this vulnerability.","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.0-beta"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-05T15:06:03.491956Z","id":"CVE-2026-16791","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-05T15:08:08.310Z"}}]}}