CVE-2018-3978: Atlantiswordprocessor Atlantis Word Processor

High severity, CVSS 7.8. EPSS: 1% chance of exploitation in the next 30 days.

An exploitable out-of-bounds write vulnerability exists in the Word Document parser of the Atlantis Word Processor 3.0.2.3, 3.0.2.5. A specially crafted document can cause Atlantis to write a value outside the bounds of a heap allocation, resulting in a buffer overflow. An attacker must convince a victim to open a document in order to trigger this vulnerability.

Affected products

• Atlantiswordprocessor Atlantis Word Processor: version 3.0.2.3 only; version 3.0.2.5 only

Published 2018-10-01. Last modified 2026-06-17.