CVE-2021-22204
CISA KEVPublished November 17, 2021 · Updated April 3, 2026
high
Official Description+
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
Affected Products
| Vendor | Product |
|---|---|
| Perl | Exiftool |
Patch Status
Patch by 2021-12-01
Recommended Actions
- Check if your systems use any of the affected products listed above.
- Apply vendor patches immediately if available.
- This vulnerability is in CISA's Known Exploited Vulnerabilities catalog — prioritize remediation.
- Monitor vendor advisories for updates and additional mitigations.
- Review logs for indicators of compromise related to CVE-2021-22204.