---
id: CVE-2026-27287
title: >-
  InCopy versions 20.5.2, 21.2 and earlier are affected by an out-of-bounds read
  vulnerability when parsing a crafted file, which could result in a read past
  the end of an allocated memory structure
summary: >-
  InCopy versions 20.5.2, 21.2 and earlier are affected by an out-of-bounds read
  vulnerability when parsing a crafted file, which could result in a read past
  the end of an allocated memory structure. An attacker could leverage this
  vulnera…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-125
vendor: adobe
product: incopy
affected:
  - incopy < 20.5.3
  - 'incopy >= 21.0, < 21.3'
patched:
  - incopy 21.3
published: '2026-04-14'
updated: '2026-07-25'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-27287'
references:
  - url: 'https://helpx.adobe.com/security/products/incopy/apsb26-33.html'
    label: psirt@adobe.com
tags:
  - nvd
epss: 0.00293
epssPercentile: 0.19538
ingestedAt: '2026-07-26T10:11:59.255Z'
---

## Overview

InCopy versions 20.5.2, 21.2 and earlier are affected by an out-of-bounds read vulnerability when parsing a crafted file, which could result in a read past the end of an allocated memory structure. An attacker could leverage this vulnerability to execute code in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

## Affected

- `incopy < 20.5.3`
- `incopy >= 21.0, < 21.3`

## Remediation

Upgrade past the affected range:

- `incopy 21.3`