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CVE-2026-34703 Adobe CVE debrief

CVE-2026-34703 is a NULL Pointer Dereference vulnerability affecting Adobe InDesign versions 21.3, 20.5.3, and earlier. This vulnerability could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Vendor
Adobe
Product
InDesign Desktop
CVSS
MEDIUM 5.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-06-10
Advisory published
2026-06-09
Advisory updated
2026-06-10

Who should care

Users of Adobe InDesign versions 21.3, 20.5.3, and earlier should apply the necessary updates to mitigate this vulnerability.

Technical summary

The vulnerability is caused by a NULL Pointer Dereference in Adobe InDesign. The CVSS score for this vulnerability is 5.5, with a severity rating of MEDIUM.

Defensive priority

MEDIUM

Recommended defensive actions

  • Apply the necessary updates as recommended by Adobe.
  • Be cautious when opening files from unknown sources.

Evidence notes

The CVE record and NVD detail can be found at [cve-org] and [nvd], respectively. Adobe's vendor advisory is available at [ref-4].

Official resources

CVE-2026-34703 was published on 2026-06-09T18:16:42.333Z and modified on 2026-06-10T13:01:22.350Z.