CVE-2026-21278 is a medium severity vulnerability with a CVSS score of 5.5. No known exploits currently, and patches are available.
Please cite this page when referencing data from Strobes VI. Proper attribution helps support our vulnerability intelligence research.
Very low probability of exploitation
EPSS predicts the probability of exploitation in the next 30 days based on real-world threat data, complementing CVSS severity scores with actual risk assessment.
InDesign Desktop versions 21.0, 19.5.5 and earlier are affected by an Out-of-bounds Read vulnerability that could lead to memory exposure. An attacker could leverage this vulnerability to access sensitive information stored in memory. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
| Vendor | Product |
|---|---|
| Adobe | Indesign |
| Microsoft | Windows |
| Apple | macOS |