CVE-2026-21278
Unknown Unknown - Not Provided
Out-of-Bounds Read in Adobe InDesign Risks Memory Exposure

Publication date: 2026-01-13

Last updated on: 2026-01-13

Assigner: Adobe Systems Incorporated

Description
InDesign Desktop versions 21.0, 19.5.5 and earlier are affected by an Out-of-bounds Read vulnerability that could lead to memory exposure. An attacker could leverage this vulnerability to access sensitive information stored in memory. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
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Meta Information
Published
2026-01-13
Last Modified
2026-01-13
Generated
2026-06-16
AI Q&A
2026-01-14
EPSS Evaluated
2026-06-15
NVD
CVE-2026-21278
EUVD
EUVD-2026-2059
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
adobe indesign_desktop to 19.5.5 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-125 The product reads data past the end, or before the beginning, of the intended buffer.
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Executive Summary

This vulnerability is an Out-of-bounds Read in Adobe InDesign Desktop versions 21.0, 19.5.5 and earlier. It allows an attacker to read memory outside the intended boundaries, potentially exposing sensitive information stored in memory. Exploiting this requires the victim to open a malicious file.

Impact Analysis

The vulnerability can lead to exposure of sensitive information stored in memory, which could be accessed by an attacker if a user opens a malicious file. This could compromise confidentiality of data.

Mitigation Strategies

To mitigate this vulnerability, avoid opening files from untrusted or unknown sources in affected versions of Adobe InDesign Desktop (versions 21.0, 19.5.5 and earlier). Ensure that users are aware of the risk and exercise caution with files received via email or other means. Additionally, update Adobe InDesign to a version later than 21.0 or 19.5.5 once a patch is available.

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