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.

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.

The version of Adobe InDesign installed on the remote macOS 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.

ID	Name	Product	Family	Severity
306383	Adobe InDesign < 20.5.3 / 21.0 < 21.3.0 Multiple Vulnerabilities (APSB26-32)	Nessus	Windows	high
306382	Adobe InDesign < 20.5.3 / 21.0 < 21.3.0 Multiple Vulnerabilities (APSB26-32) (macOS)	Nessus	MacOS X Local Security Checks	high

Detections

Analytics

CVE-2026-34629

high

Tenable Plugins

high

high