Overview
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
https://nvd.nist.gov/vuln/detail/CVE-2021-22204
Key Details
| Property | Value |
|---|---|
| CVE ID | CVE-2021-22204 |
| Vendor / Product | Perl — Exiftool |
| NVD Published | 2021-04-23 |
| NVD Last Modified | 2025-11-03 |
| CVSS 3.1 Score | 6.8 |
| CVSS 3.1 Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L |
| Severity | MEDIUM |
| CWE | CWE-94 |
| CISA KEV Added | 2021-11-17 |
| CISA KEV Deadline | 2021-12-01 |
| Known Ransomware Use | No |
CVSS 3.1 Breakdown
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low
Required Action
CISA BOD 22-01 Deadline: 2021-12-01.
Apply updates per vendor instructions.
Timeline
| Date | Event |
|---|---|
| 2021-11-17 | Added to CISA Known Exploited Vulnerabilities catalog |
| 2021-12-01 | CISA BOD 22-01 remediation deadline |
References
| Resource | Type |
|---|---|
| NVD — CVE-2021-22204 | Vulnerability Database |
| CISA KEV Catalog Entry | US Government |