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TI-2017-02040 Aliases CVE-2017-2819GHSA-g9qc-mh3w-mp47

Memory corruption in Hancom Hangul Word Processor in Thinkfree Office NEO Trial Word

Priority MEDIUM 41CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

An exploitable heap-based buffer overflow exists in the Hangul Word Processor component (version 9.6.1.4350) of Hancom Thinkfree Office NEO 9.6.1.4902. A specially crafted document stream can cause an integer underflow resulting in a buffer overflow which can lead to code execution under the context of the application. An attacker can entice a user to open up a document in order to trigger this vulnerability.

Why it matters now

EPSS 0.01664 76th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
HancomHangul Word Processor in Thinkfree Office NEO Trial Word9.6.1.4902—No fix listedCNA
  • Hangul Word Processor in Thinkfree Office NEO Trial Word VendorHancom Affected 9.6.1.4902 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:hancom:hangul_word_processor:9.6.1.4350:*:*:*:*:*:*:*9.6.1.4350VulnerableHancom
cpe:2.3:a:hancom:thinkfree_office_neo:9.6.1.4902:*:*:*:*:*:*:*9.6.1.4902VulnerableHancom
  • cpe:2.3:a:hancom:hangul_word_processor:9.6.1.4350:*:*:*:*:*:*:* Versions 9.6.1.4350 Vulnerable ·Hancom
  • cpe:2.3:a:hancom:thinkfree_office_neo:9.6.1.4902:*:*:*:*:*:*:* Versions 9.6.1.4902 Vulnerable ·Hancom

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-2819
  2. 2026-10-03 Alias added: GHSA-g9qc-mh3w-mp47

References

Exploit 1

  • TI-2015-05521 hwpapp.dll in Hangul Word Processor allows remote attackers to execute arbitrary code via… CVSS 3.0HIGH 7.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences