CVE-2017-20006: RARLAB UnRAR

High severity, CVSS 7.8. EPSS: 1.2% chance of exploitation in the next 30 days.

UnRAR 5.6.1.2 and 5.6.1.3 has a heap-based buffer overflow in Unpack::CopyString (called from Unpack::Unpack5 and CmdExtract::ExtractCurrentFile).

Affected products

• RARLAB UnRAR: version 5.6.1.2 only; version 5.6.1.3 only

Published 2021-07-01. Last modified 2026-06-17.