{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-25067","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-01-28T21:47:35.119Z","datePublished":"2026-01-29T03:38:02.582Z","dateUpdated":"2026-03-05T01:30:42.395Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"SmarterMail","vendor":"SmarterTools","versions":[{"lessThan":"100.0.9518","status":"affected","version":"0","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:smartertools:smartermail:*:*:*:*:*:*:*:*","versionEndExcluding":"100.0.9518"}]}]}],"credits":[{"lang":"en","type":"finder","value":"Cale Black of VulnCheck"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"SmarterTools SmarterMail versions prior to build 9518  contain&nbsp;an unauthenticated path coercion vulnerability in the background-of-the-day preview endpoint. The application base64-decodes attacker-supplied input and uses it as a filesystem path without validation. On Windows systems, this allows UNC paths to be resolved, causing the SmarterMail service to initiate outbound SMB authentication attempts to attacker-controlled hosts. This can be abused for credential coercion, NTLM relay attacks, and unauthorized network authentication.<br>"}],"value":"SmarterTools SmarterMail versions prior to build 9518  contain an unauthenticated path coercion vulnerability in the background-of-the-day preview endpoint. The application base64-decodes attacker-supplied input and uses it as a filesystem path without validation. On Windows systems, this allows UNC paths to be resolved, causing the SmarterMail service to initiate outbound SMB authentication attempts to attacker-controlled hosts. This can be abused for credential coercion, NTLM relay attacks, and unauthorized network authentication."}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-706","description":"CWE-706 Use of Incorrectly-Resolved Name or Reference","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-03-05T01:30:42.395Z"},"references":[{"tags":["release-notes","patch"],"url":"https://www.smartertools.com/smartermail/release-notes/current"},{"tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/smartertools-smartermail-unauthenticated-background-of-the-day-path-coercion"}],"source":{"discovery":"UNKNOWN"},"title":"SmarterTools SmarterMail < Build 9518 Unauthenticated background-of-the-day Path Coercion","x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-29T17:51:38.523562Z","id":"CVE-2026-25067","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"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":"2026-01-29T17:51:55.414Z"}}]}}