# CVE-2021-21938

## Summary

- **CVE ID:** CVE-2021-21938
- **Severity:** CRITICAL
- **CVSS Score:** 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-193
- **Published:** Apr 14, 2022
- **Last Modified:** Mar 13, 2026

## Description

A heap-based buffer overflow vulnerability exists in the Palette box parser functionality of Accusoft ImageGear 19.10. A specially-crafted file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.

## Affected Products

- Accusoft — ImageGear (19.10)

## References

- [CNA](https://talosintelligence.com/vulnerability_reports/TALOS-2021-1367)
- [CNA](http://help.accusoft.com/ImageGear/v20.0/Windows/DLL/webframe.html)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.79%
- **EPSS Percentile:** 73.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._