CVE-2026-21278

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{}

{"analysis": {"en": {"generated_at": "2026-04-18T16:21:45.550644+00:00", "value": {"mitigation_remediation": ["Update Adobe InDesign to a newer, non\u2011affected version (e.g., 21.1 or later) and apply Adobe\u2019s latest security patch.", "Avoid opening or executing unknown InDesign files; verify the file source before opening.", "Configure system or application settings to disable automatic opening of files received via email or untrusted locations to prevent the file from being opened without user interaction."], "summary": {"action": "Apply Patch", "impact": "Memory Exposure"}, "threat_synthesis": {"affected_systems": "Adobe InDesign Desktop, versions 21.0, 19.5.5 and all earlier releases are affected.", "description_and_impact": "An out\u2011of\u2011bounds read in InDesign Desktop can cause memory exposure, allowing an attacker to read sensitive data from memory. The flaw requires a victim to open a malicious file, therefore user interaction is necessary for exploitation.", "risk_and_exploitability": "The vulnerability has a CVSS score of 5.5, indicating moderate severity, and an EPSS score of less than 1%, reflecting a low likelihood of exploitation. It is not listed in the CISA KEV catalog. Exploitation requires that a user opens a specially crafted InDesign file, so the attack vector is primarily local input exploitation via a crafted file."}}}}, "created": "2026-01-14T11:08:42.429317+00:00", "updated": "2026-04-18T16:30:05.081559+00:00", "vendors": ["adobe", "adobe$PRODUCT$indesign"]}