CVE-2015-2810: Hancom Hanword Viewer 2007

High severity, CVSS 7.5. EPSS: 2.3% chance of exploitation in the next 30 days.

Integer overflow in the HwpApp::CHncSDS_Manager function in Hancom Office HanWord processor, as used in Hwp 2014 VP before 9.1.0.2342, HanWord Viewer 2007 and Viewer 2010 8.5.6.1158, and HwpViewer 2014 VP 9.1.0.2186, allows remote attackers to cause a denial of service (crash) and possibly "influence the program's execution flow" via a document with a large paragraph size, which triggers heap corruption.

Affected products

• Hancom Hanword Viewer 2007: any version
• Hancom Hanword Viewer 2010: version 8.5.6.1158 only
• Hancom Hwp 2014: up to and including 9.1.0.2342
• Hancom Hwpviewer 2014: version 9.1.0.2186 only

Published 2015-05-15. Last modified 2026-06-17.