CVE-2021-3806

CVE-2021-3806 is a medium vulnerability published on September 18, 2021. A path traversal vulnerability on Pardus Software Center's "extractArchive" function could allow anyone on the same network to do a man-in-the-middle and write files on the system.

CVE-2021-3806 was first published in the National Vulnerability Database on September 18, 2021, with the most recent update on May 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

CVE-2021-3806 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 68.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

CVE-2021-3806 has a CVSS v3 base score of 5.3 (NVD).

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-3806, 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.