{"id":"CVE-2025-62553","title":"Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.","summary":"Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.","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-416"],"vendor":"microsoft","product":"365_apps","affected":["365_apps","excel = 2016","office = 2019","office_long_term_servicing_channel = 2021","office_long_term_servicing_channel = 2024"],"published":"2025-12-09","updated":"2026-10-14","sourceUpdated":"2026-10-14T21:10:00.183","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-62553","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-62553","label":"secure@microsoft.com"}],"tags":["nvd"],"epss":0.00658,"epssPercentile":0.50356,"ingestedAt":"2026-10-14T21:57:04.758Z","slug":"CVE-2025-62553","body":"## Overview\n\nUse after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.\n\n## Affected\n\n- `365_apps`\n- `excel = 2016`\n- `office = 2019`\n- `office_long_term_servicing_channel = 2021`\n- `office_long_term_servicing_channel = 2024`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}