CVE-2025-21126 InDesign Desktop | Improper Input Validation (CWE-20)

What is CVE-2025-21126?

CVE-2025-21126 is a medium-severity denial of service vulnerability in Adobe Indesign, published on 11 Feb 2025. 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 ID20.0, ID19.5.1 and earlier are affected by an Improper Input Validation vulnerability that could result in an application denial-of-service condition. An attacker could exploit this vulnerability to cause the application to crash, resulting in a denial of service. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Weakness: CWE-20

Which versions are affected by CVE-2025-21126?

It affects 1 product.

Products include Adobe Indesign.

How do I fix CVE-2025-21126?

No fix has been published for CVE-2025-21126 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2025-21126 being exploited?

There is no known exploitation of CVE-2025-21126 in the wild and no public exploit code.

Other vulnerabilities in Adobe Indesign

• CVE-2019-7107 Code injection in InDesign Critical 9.8
• CVE-2017-11302 Memory corruption in Adobe InDesign 12.1.0 and earlier versions Critical 9.8
• CVE-2016-7886 Memory corruption in Adobe InDesign 11.4.1 and earlier, InDesign Server 11.0.0 and earlier Critical 9.8
• CVE-2021-36004 Adobe InDesign CoolType out of bounds write vulnerability could lead to arbitrary stack manipulation High 8.8
• CVE-2021-21098 Adobe InDesign PCX file parsing out-of-bounds write vulnerability could lead to remote code execution High 8.8

All Adobe Indesign vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-m9qp-v432-82vj.