CVE-2026-21281 - Vulnerability Details - OpenCVE

InCopy versions 21.0, 19.5.5 and earlier are affected by a Heap-based Buffer Overflow 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.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact total

No data.

No data.

No data.

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References

Link	Providers
https://helpx.adobe.com/security/products/incopy/apsb26-04.html

History

Tue, 13 Jan 2026 19:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Tue, 13 Jan 2026 19:00:00 +0000

Type	Values Removed	Values Added
Description		InCopy versions 21.0, 19.5.5 and earlier are affected by a Heap-based Buffer Overflow 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.
Title		InCopy \| Heap-based Buffer Overflow (CWE-122)
Weaknesses		CWE-122
References		https://helpx.adobe.com/security/products/incopy/apsb26-04.html
Metrics		cvssV3_1 `{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}`

MITRE

Status: PUBLISHED

Assigner: adobe

Published: 2026-01-13T18:45:30.580Z

Updated: 2026-01-13T18:59:01.009Z

Reserved: 2025-12-12T22:01:18.188Z

Link: CVE-2026-21281

Vulnrichment

Updated: 2026-01-13T18:58:55.224Z

NVD

Status : Received

Published: 2026-01-13T19:16:25.857

Modified: 2026-01-13T19:16:25.857

Link: CVE-2026-21281

Redhat

No data.

OpenCVE Enrichment

No data.

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