CVE-2021-21939

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-04-14 · updated 2026-06-17
Weakness: CWE-120

Description

A heap-based buffer overflow vulnerability exists in the XWD 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

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1368
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1368

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