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HIGH · 7.8

CVE-2026-34631

InCopy versions 20.5.2, 21.2 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this iss...

Vulnerability Description

InCopy versions 20.5.2, 21.2 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary 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.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
AdobeIncopy< 20.5.3
AppleMacos-
MicrosoftWindows-

Related Weaknesses (CWE)

CWE-787

References

FAQ

What is CVE-2026-34631?

CVE-2026-34631 is a vulnerability with a CVSS score of 7.8 (HIGH). InCopy versions 20.5.2, 21.2 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this iss...

How severe is CVE-2026-34631?

CVE-2026-34631 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-34631?

Check the references section above for vendor advisories and patch information. Affected products include: Adobe Incopy, Apple Macos, Microsoft Windows.