What’s Vulnerable › Vulnerabilities

CVE-2016-4294

• Severity: high (CVSS 7.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-01-06 · updated 2026-06-17
• Weakness: CWE-119

Description

When opening a Hangul Hcell Document (.cell) and processing a property record within the Workbook stream, Hancom Office 2014 will attempt to allocate space for an element using a length from the file. When copying user-supplied data to this buffer, however, the application will use a different size which leads to a heap-based buffer overflow. This vulnerability can lead to code-execution under the context of the application.

Affected products

• Hancom Office: through 9.1.0.2176

References

• http://www.securityfocus.com/bid/92327
• http://www.talosintelligence.com/reports/TALOS-2016-0149/
• http://www.securityfocus.com/bid/92327
• http://www.talosintelligence.com/reports/TALOS-2016-0149/

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