Adobe InDesign < 20.5.3 / 21.0 < 21.3.0 Multiple Vulnerabilities (APSB26-32)

high Nessus Plugin ID 306383

Synopsis

The Adobe InDesign instance installed on the remote host is affected by multiple vulnerabilities.

Description

The version of Adobe InDesign installed on the remote Windows host is prior to 20.5.3, 21.3.0. It is, therefore, affected by multiple vulnerabilities as referenced in the APSB26-32 advisory.

- Heap-based Buffer Overflow (CWE-122) potentially leading to Arbitrary code execution (CVE-2026-34627, CVE-2026-34628, CVE-2026-34629)

- InDesign Desktop 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. (CVE-2026-27291)

- InDesign Desktop versions 20.5.2, 21.2 and earlier are affected by a Use After Free 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. (CVE-2026-27283)

- InDesign Desktop 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.
(CVE-2026-27284)

- InDesign Desktop versions 20.5.2, 21.2 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.
(CVE-2026-27238)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Adobe InDesign version 20.5.3, 21.3.0 or later.

See Also

https://helpx.adobe.com/security/products/indesign/apsb26-32.html

Plugin Details

Severity: High

ID: 306383

File Name: adobe_indesign_apsb26-32.nasl

Version: 1.1

Type: Local

Agent: windows

Family: Windows

Published: 4/14/2026

Updated: 4/14/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-27291

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2026-34629

Vulnerability Information

CPE: cpe:/a:adobe:indesign

Required KB Items: SMB/Registry/Enumerated, installed_sw/Adobe InDesign

Exploit Ease: No known exploits are available

Patch Publication Date: 4/14/2026

Vulnerability Publication Date: 4/14/2026

Reference Information

CVE: CVE-2026-27238, CVE-2026-27283, CVE-2026-27284, CVE-2026-27285, CVE-2026-27286, CVE-2026-27291, CVE-2026-34627, CVE-2026-34628, CVE-2026-34629

CWE: 122, 125, 416, 787