CVE-2021-22204 KEV EXPLOIT
6.8
MEDIUM · CVSS 3.1 · EPSS 100% (pctl 100)
Patch first
On CISA KEV — known exploited in the wild, due 2021-12-01.
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
Scoring
| CVSS | 6.8 (MEDIUM, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L |
| EPSS | 99.98% — more likely to be exploited than 100% of all CVEs |
| Weakness | CWE-94 |
| On CISA KEV | yes — remediate by 2021-12-01 |
| Public exploit | yes |
| Published | 2021-04-23 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | ExifTool Remote Code Execution Vulnerability |
|---|---|
| Added | 2021-11-17 |
| Due | 2021-12-01 |
| Vendor / product | Perl / Exiftool |
| Ransomware use | none reported |
Affected (3)
| Vendor | Product |
|---|---|
| debian | debian linux |
| exiftool project | exiftool |
| fedoraproject | fedora |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | ExifTool 12.23 - Arbitrary Code Execution | 2022-05-11 |
References
- http://packetstormsecurity.com/files/162558/ExifTool-DjVu-ANT-Perl-Injection.html
- http://packetstormsecurity.com/files/164768/GitLab-Unauthenticated-Remote-ExifTool-Command-Injection.html
- http://packetstormsecurity.com/files/164994/GitLab-13.10.2-Remote-Code-Execution.html
- http://packetstormsecurity.com/files/167038/ExifTool-12.23-Arbitrary-Code-Execution.html
- http://www.openwall.com/lists/oss-security/2021/05/09/1
- http://www.openwall.com/lists/oss-security/2021/05/10/5
- https://github.com/exiftool/exiftool/commit/cf0f4e7dcd024ca99615bfd1102a841a25dde031#diff-fa0d652d10dbcd246e6b1df16c1e992931d3bb717a7e36157596b76bdadb3800
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22204.json
- https://hackerone.com/reports/1154542
- https://lists.debian.org/debian-lts-announce/2021/05/msg00018.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DDKDLJLBTBBR66OOPXSXCG2PQRM5KCZL/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F6UOBPU3LSHAPRRJNISNVXZ5DSUIALLV/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U4RF6PJCJ6NQOVJJJF6HN6BORUQVIXY6/
- https://www.debian.org/security/2021/dsa-4910
- http://packetstormsecurity.com/files/162558/ExifTool-DjVu-ANT-Perl-Injection.html
- http://packetstormsecurity.com/files/164768/GitLab-Unauthenticated-Remote-ExifTool-Command-Injection.html
- http://packetstormsecurity.com/files/164994/GitLab-13.10.2-Remote-Code-Execution.html
- http://packetstormsecurity.com/files/167038/ExifTool-12.23-Arbitrary-Code-Execution.html
- http://www.openwall.com/lists/oss-security/2021/05/09/1
- http://www.openwall.com/lists/oss-security/2021/05/10/5
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