PT-2026-2775 · Adobe · Indesign Desktop

Jann Horn · Published 2026-01-13 · Updated 2026-01-13 · CVE-2026-21278

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions InDesign Desktop versions 21.0 and 19.5.5 and earlier

Description InDesign Desktop versions 21.0, 19.5.5, and earlier are susceptible to an Out-of-bounds Read issue, potentially leading to memory exposure. An attacker could exploit this to access sensitive information stored in memory. Successful exploitation requires user interaction, specifically, a victim opening a malicious file.

Recommendations Update InDesign Desktop to a version later than 21.0 and 19.5.5.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

BDU:2026-00517

CVE-2026-21278

Affected Products

Indesign Desktop

References · 5

• https://helpx.adobe.com/security/products/indesign/apsb26-02.html · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-00517 · Security Note
• https://osv.dev/vulnerability/CVE-2026-21278 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-21278 · Security Note
• https://twitter.com/CVEnew/status/2011181497752175082 · Twitter Post