CVE-2021-21090: Adobe InCopy DOCX file parsing directory traversal vulnerability could lead to remote code execution

Severity: critical (CVSS 9.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-06-28 · updated 2026-06-17
Weakness: CWE-22

Description

Adobe InCopy version 16.0 (and earlier) is affected by an path traversal vulnerability when parsing a crafted file. An unauthenticated attacker could leverage this vulnerability to achieve remote code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Affected products

Adobe InCopy: through 16.0

References

https://helpx.adobe.com/security/products/incopy/apsb21-25.html
https://helpx.adobe.com/security/products/incopy/apsb21-25.html

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