High severity7.8NVD Advisory· Published Oct 7, 2022· Updated Jun 17, 2026
CVE-2022-33896
CVE-2022-33896
Description
A buffer underflow vulnerability exists in the way Hword of Hancom Office 2020 version 11.0.0.5357 parses XML-based office files. A specially-crafted malformed file can cause memory corruption by using memory before buffer start, which can lead to code execution. A victim would need to access a malicious file to trigger this vulnerability.
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Affected products
3- cpe:2.3:a:hancom:hancom_office_2020:11.0.0.5357:*:*:*:*:*:*:*
- Range: = 11.0.0.5357
- Range: Hancom Office 2020 11.0.0.5357
Patches
Vulnerability mechanics
References
1- talosintelligence.com/vulnerability_reports/TALOS-2022-1574nvdExploitThird Party Advisory
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