{"id":"CVE-2026-21277","title":"InDesign Desktop versions 21.0, 19.5.5 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user","summary":"InDesign Desktop versions 21.0, 19.5.5 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user inte…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-122","CWE-787"],"vendor":"adobe","product":"indesign","affected":["indesign < 20.5.1","indesign >= 21.0, < 21.1"],"patched":["indesign 21.1"],"published":"2026-01-13","updated":"2026-08-27","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-21277","references":[{"url":"https://helpx.adobe.com/security/products/indesign/apsb26-02.html","label":"psirt@adobe.com"}],"tags":["nvd"],"epss":0.00272,"epssPercentile":0.19804,"ingestedAt":"2026-08-27T21:08:14.514Z","slug":"CVE-2026-21277","body":"## Overview\n\nInDesign Desktop versions 21.0, 19.5.5 and earlier are affected by a Heap-based Buffer Overflow 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.\n\n## Affected\n\n- `indesign < 20.5.1`\n- `indesign >= 21.0, < 21.1`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `indesign 21.1`","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}