Is CVE-2026-34698 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-34698 being exploited in the wild.

How severe is CVE-2026-34698?

High severity, with a CVSS score of 7.8, published 9 June 2026.

Which products and versions are affected?

Adobe InDesign 21.3, 20.5.3 and earlier.

Is there a fix for CVE-2026-34698?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-34698 attacked?

It is attacked with local access, in a network appliance.

Am I affected by CVE-2026-34698?

Check whether you run Adobe InDesign at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-34698: Adobe InDesign heap overflow in file processing

CVE-2026-34698 · Severity: high · CVSS 7.8 · Published 2026-06-09

Adobe InDesign, a professional desktop publishing software, is affected by a security flaw that could allow an attacker to take control of a user's computer. To exploit this, an attacker would need to trick a user into opening a specially crafted, malicious InDesign file. If successful, the attacker could run unauthorized commands or install software with the same permissions as the logged-in user.

Technologies: Adobe InDesign. Vendors: Adobe.

Quick answers

Is CVE-2026-34698 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-34698 being exploited in the wild.
How severe is CVE-2026-34698?: High severity, with a CVSS score of 7.8, published 9 June 2026.
Which products and versions are affected?: Adobe InDesign 21.3, 20.5.3 and earlier.
Is there a fix for CVE-2026-34698?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-34698 attacked?: It is attacked with local access, in a network appliance.
Am I affected by CVE-2026-34698?: Check whether you run Adobe InDesign at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A heap-based buffer overflow (CWE-122) exists in Adobe InDesign Desktop versions 21.3, 20.5.3 and earlier. The vulnerability is triggered when the application improperly handles memory allocation while processing a specially crafted file. An attacker can exploit this by convincing a user to open a malicious document, leading to arbitrary code execution in the context of the current user. The attack vector is classified as local because it requires the file to be opened on the victim's machine, and it requires user interaction. Adobe has addressed this issue in security bulletin APSB26-58.

Affected products

Adobe InDesign Desktop 21.3, 20.5.3 and earlier

Timeline

2026-06-09: disclosed
2026-06-09: advisory

References

https://helpx.adobe.com/security/products/indesign/apsb26-58.html

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