Findings

CVE-2021-22204

ExifTool Remote Code Execution Vulnerability

Published Apr 23, 2021 · updated Jun 16, 2026 · exiftool project exiftool

Improper neutralization of user data in the DjVu file format in Exiftool versions 7.44 and up allows arbitrary code execution when parsing the malicious image

Timeline

Detection, updates, and resolution for this record.

  1. Apr 23, 2021 · Catalog

    Detected

    Improper neutralization of user data in the DjVu file format in Exiftool versions 7.44 and up allows arbitrary code execution when parsing the malicious image

  2. Nov 17, 2021 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Dec 1, 2021 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    Improper neutralization of user data in the DjVu file format in Exiftool versions 7.44 and up allows arbitrary code execution when parsing the malicious image

Required action

Apply updates per vendor instructions.

CISA due date Dec 1, 2021

Affected

  • cpe debian/debian linux10.0
  • cpe debian/debian linux9.0
  • cpe exiftool project/exiftoolversion unspecified
  • cpe fedoraproject/fedora32
  • cpe fedoraproject/fedora33
  • cpe fedoraproject/fedora34
  • vendor Perl Exiftoolversion unspecified

Sources

References

CVE-2021-22204 · ZeroDay Findings