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High severity8.8NVD Advisory· Published Apr 14, 2022· Updated Jun 17, 2026

CVE-2021-21947

CVE-2021-21947

Description

Two heap-based buffer overflow vulnerabilities exists in the JPEG-JFIF lossless Huffman image parser functionality of Accusoft ImageGear 19.10. A specially-crafted file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger these vulnerabilities.This heap-based buffer overflow takes place when the SOF3 precision is greater or equal than 9.

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Affected products

3
  • Accusoft/Imagegear3 versions
    cpe:2.3:a:accusoft:imagegear:19.10:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:a:accusoft:imagegear:19.10:*:*:*:*:*:*:*
    • (no CPE)range: =19.10
    • (no CPE)range: 19.10

Patches

Vulnerability mechanics

References

1

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