Impact
InDesign Desktop versions 21.3, 20.5.3 and earlier contain a heap-based buffer overflow that can be triggered by opening a malformed file. If exploited, the attacker can gain arbitrary code execution in the context of the user opening the file, potentially leading to full system compromise. The weakness is a classic out‑of‑bounds write that satisfies CWE‑122.
Affected Systems
Adobe InDesign Desktop. The vulnerability affects all installations of versions 21.3, 20.5.3 and any earlier release, regardless of OS platform.
Risk and Exploitability
The CVSS score of 7.8 indicates a high impact with the requirement for user interaction. The EPSS score is not available, so no quantitative estimate of exploitation likelihood can be made, but the need for the victim to open a file means the attack is limited to situations where malicious or compromised files are processed. The vulnerability is not listed in the CISA KEV catalog.
OpenCVE Enrichment