Adobe InDesign Access of Uninitialized Pointer Vulnerability in v21.0, 19.5.5
CVE-2026-21276 Published on January 13, 2026
InDesign Desktop | Access of Uninitialized Pointer (CWE-824)
InDesign Desktop versions 21.0, 19.5.5 and earlier are affected by an Access of Uninitialized Pointer vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Vulnerability Analysis
CVE-2026-21276 is exploitable with local system access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
Access of Uninitialized Pointer
The program accesses or uses a pointer that has not been initialized.
Products Associated with CVE-2026-21276
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Affected Versions
Adobe InDesign Desktop:- Before and including 19.5.5 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.