CVE-1999-0840

CVE-1999-0840 is a none vulnerability published on November 30, 1999. Buffer overflow in CDE dtmail and dtmailpr programs allows local users to gain privileges via a long -f option.

CVE-1999-0840 was first published in the National Vulnerability Database on November 30, 1999, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

CVE-1999-0840 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 46.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-1999-0840, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.