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Case File

CVE-2016-4296

HIGH · CVSS 7.8 EPSS 2.23% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2017-01-06 · Last synced 2026-08-04

Field Assessment

AI analysis pending.

Exhibit — Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
code execution

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2016-4296
Severity
HIGH
CVSS
7.8
EPSS
2.23%
Office

Original Filing — NVD Description

When opening a Hangul Hcell Document (.cell) and processing a record that uses the CSSValFormat object, Hancom Office 2014 will search for an underscore ("_") character at the end of the string and write a null terminator after it. If the character is at the very end of the string, the application will mistakenly write the null-byte outside the bounds of its destination. This can result in heap corruption that can lead code execution under the context of the application