CVE-2026-21275 InDesign Desktop | Access of Uninitialized Pointer (CWE-824)
An attacker can execute arbitrary code by tricking a user into opening a malicious file in Adobe InDesign Desktop.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-21275?
CVE-2026-21275 is a high-severity memory corruption vulnerability in Adobe Indesign, published on 13 Jan 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-824
Which versions are affected by CVE-2026-21275?
It affects 1 product.
Products include Adobe Indesign.
How do I fix CVE-2026-21275?
No fix has been published for CVE-2026-21275 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-21275 being exploited?
There is no known exploitation of CVE-2026-21275 in the wild and no public exploit code.
Other vulnerabilities in Adobe Indesign
- CVE-2019-7107 Code injection in InDesign
- CVE-2017-11302 Memory corruption in Adobe InDesign 12.1.0 and earlier versions
- CVE-2016-7886 Memory corruption in Adobe InDesign 11.4.1 and earlier, InDesign Server 11.0.0 and earlier
- CVE-2021-36004 Adobe InDesign CoolType out of bounds write vulnerability could lead to arbitrary stack manipulation
- CVE-2021-21098 Adobe InDesign PCX file parsing out-of-bounds write vulnerability could lead to remote code execution
Sources
Also known as GHSA-p996-826h-xhfr.