What’s Vulnerable › Vulnerabilities

CVE-2022-33896

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-10-07 · updated 2026-06-17
• Weakness: CWE-124

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.

Affected products

• Hancom Office 2020: 11.0.0.5357

References

• https://talosintelligence.com/vulnerability_reports/TALOS-2022-1574
• https://talosintelligence.com/vulnerability_reports/TALOS-2022-1574

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