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CVE-2021-22204

HIGH
7.8
CVSS Score
Published: April 23, 2021 at 05:22 PM UTC
Updated: June 17, 2026 at 03:36 AM UTC
4 products affected across 4 vendorsDebian LinuxFedoraExiftool

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Severity
HIGH7.8
Exploitation
CISA KEV
Exploit prediction
EPSS 100%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score100.0%

EPSS (Exploit Prediction Scoring System) estimates a 100.0% chance this CVE is exploited in the wild within the next 30 days — higher than 100% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

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.
Ransomware Use
Unknown
Added to KEV
Nov 17, 2021
Remediation Due
Dec 1, 2021
1795 days overdue
Notes
https://nvd.nist.gov/vuln/detail/CVE-2021-22204

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux· Debiandrupal
95%
10.09.0
Exiftool· Exiftool Project
95%
7.44 ≤ v < 12.24
Affected range stops below 12.24, so it looks safe — our inference, not a vendor statement
Fedora· Fedora Projectrpm
95%
323334
ExifTool· Exiftool
60%
v < 12.24
Affected range stops below 12.24, so it looks safe — our inference, not a vendor statement

References (15)

x_refsource_MISCExploitThird Party AdvisoryVDB Entry
Source: [email protected]
http://packetstormsecurity.com/files/162558/ExifTool-DjVu-ANT-Perl-Injection.html
x_refsource_MISCExploitThird Party AdvisoryVDB Entry
Source: [email protected]
http://packetstormsecurity.com/files/164768/GitLab-Unauthenticated-Remote-ExifTool-Command-Injection.html
x_refsource_MISCExploitThird Party AdvisoryVDB Entry
Source: [email protected]
http://packetstormsecurity.com/files/164994/GitLab-13.10.2-Remote-Code-Execution.html
x_refsource_MISCExploitThird Party AdvisoryVDB Entry
Source: [email protected]
http://packetstormsecurity.com/files/167038/ExifTool-12.23-Arbitrary-Code-Execution.html
Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2021/05/09/1
Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2021/05/10/5
x_refsource_MISCPatch
Source: [email protected]
https://github.com/exiftool/exiftool/commit/cf0f4e7dcd024ca99615bfd1102a841a25dde031#diff-fa0d652d10dbcd246e6b1df16c1e992931d3bb717a7e36157596b76bdadb3800
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22204.json

SSVC — Action Prioritization

SSVCActiveNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-94

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