Quick answers
- Is CVE-2026-34700 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-34700 being exploited in the wild.
- How severe is CVE-2026-34700?
- 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-2026-34700?
- 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-2026-34700 attacked?
- It is attacked with local access, in a network appliance.
- Am I affected by CVE-2026-34700?
- 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
An out-of-bounds write vulnerability (CWE-787) exists in Adobe InDesign Desktop versions 21.3, 20.5.3 and earlier. The flaw occurs when the application processes a specially crafted file, leading to memory corruption. An attacker can leverage this to execute arbitrary code with the privileges of the current user. The attack vector is local, requiring the victim to manually open a malicious document (User Interaction: Required). Adobe has addressed this issue in updated versions of the software.
Affected products
- Adobe InDesign Desktop 21.3, 20.5.3 and earlier
Timeline
- 2026-06-09: disclosed
- 2026-06-09: advisory