{"schema_version":1,"title":"Microsoft Office Excel vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 49 vulnerabilities in Microsoft Office Excel: 0 in the last 7 days and 49 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-85875, was published on 8 September 2026.","url":"https://junglewise.ai/threats/technologies/office-excel","json_url":"https://junglewise.ai/threats/technologies/office-excel.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/office-excel","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":31,"all_time":49,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":26,"last_90_days":49,"last_365_days":49},"latest":[{"cve":"CVE-2026-85875","cvss":5.5,"epss":0.0054,"slug":"cve-2026-85875-microsoft-office-excel-out-of-bounds-read","title":"Microsoft Office Excel out-of-bounds read","severity":"medium","exploited":false,"published_at":"2026-09-08T18:21:13.807+00:00","url":"https://junglewise.ai/threats/cve-2026-85875-microsoft-office-excel-out-of-bounds-read"},{"cve":"CVE-2026-81960","cvss":7.8,"epss":0.0047,"slug":"cve-2026-81960-microsoft-office-excel-heap-buffer-overflow","title":"Microsoft Office Excel heap buffer overflow","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:59.953+00:00","url":"https://junglewise.ai/threats/cve-2026-81960-microsoft-office-excel-heap-buffer-overflow"},{"cve":"CVE-2026-81959","cvss":7.8,"epss":0.0047,"slug":"cve-2026-81959-microsoft-office-excel-heap-based-buffer-overflow","title":"Microsoft Office Excel heap-based buffer overflow","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:59.81+00:00","url":"https://junglewise.ai/threats/cve-2026-81959-microsoft-office-excel-heap-based-buffer-overflow"},{"cve":"CVE-2026-81958","cvss":5.5,"epss":0.0054,"slug":"cve-2026-81958-microsoft-office-excel-information-disclosure-via-uninitialized","title":"Microsoft Office Excel information disclosure via uninitialized resource","severity":"medium","exploited":false,"published_at":"2026-09-08T18:20:59.673+00:00","url":"https://junglewise.ai/threats/cve-2026-81958-microsoft-office-excel-information-disclosure-via-uninitialized"},{"cve":"CVE-2026-81954","cvss":7.8,"epss":0.0047,"slug":"cve-2026-81954-microsoft-office-excel-use-after-free-memory-corruption","title":"Microsoft Office Excel use after free memory corruption","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:58.987+00:00","url":"https://junglewise.ai/threats/cve-2026-81954-microsoft-office-excel-use-after-free-memory-corruption"},{"cve":"CVE-2026-81953","cvss":7.8,"epss":0.0047,"slug":"cve-2026-81953-microsoft-office-excel-stack-based-buffer-overflow","title":"Microsoft Office Excel stack-based buffer overflow","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:58.86+00:00","url":"https://junglewise.ai/threats/cve-2026-81953-microsoft-office-excel-stack-based-buffer-overflow"},{"cve":"CVE-2026-81951","cvss":7.8,"epss":0.0047,"slug":"cve-2026-81951-microsoft-office-excel-heap-based-buffer-overflow","title":"Microsoft Office Excel heap-based buffer overflow","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:58.59+00:00","url":"https://junglewise.ai/threats/cve-2026-81951-microsoft-office-excel-heap-based-buffer-overflow"},{"cve":"CVE-2026-81950","cvss":7.8,"epss":0.0047,"slug":"cve-2026-81950-microsoft-office-excel-double-free-memory-corruption","title":"Microsoft Office Excel double free memory corruption","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:58.46+00:00","url":"https://junglewise.ai/threats/cve-2026-81950-microsoft-office-excel-double-free-memory-corruption"},{"cve":"CVE-2026-81949","cvss":7.8,"epss":0.0047,"slug":"cve-2026-81949-microsoft-office-excel-integer-overflow-allows-local-code","title":"Microsoft Office Excel integer overflow allows local code execution","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:58.313+00:00","url":"https://junglewise.ai/threats/cve-2026-81949-microsoft-office-excel-integer-overflow-allows-local-code"},{"cve":"CVE-2026-81948","cvss":7.8,"epss":0.0047,"slug":"cve-2026-81948-microsoft-office-excel-heap-based-buffer-overflow","title":"Microsoft Office Excel heap-based buffer overflow","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:58.18+00:00","url":"https://junglewise.ai/threats/cve-2026-81948-microsoft-office-excel-heap-based-buffer-overflow"},{"cve":"CVE-2026-81947","cvss":7.8,"epss":0.0047,"slug":"cve-2026-81947-microsoft-office-excel-heap-based-buffer-overflow","title":"Microsoft Office Excel heap-based buffer overflow","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:58.04+00:00","url":"https://junglewise.ai/threats/cve-2026-81947-microsoft-office-excel-heap-based-buffer-overflow"},{"cve":"CVE-2026-81401","cvss":5.5,"epss":0.0054,"slug":"cve-2026-81401-microsoft-office-excel-type-confusion-in-resource-access","title":"Microsoft Office Excel type confusion in resource access","severity":"medium","exploited":false,"published_at":"2026-09-08T18:20:56.827+00:00","url":"https://junglewise.ai/threats/cve-2026-81401-microsoft-office-excel-type-confusion-in-resource-access"},{"cve":"CVE-2026-81400","cvss":5.5,"epss":0.0054,"slug":"cve-2026-81400-microsoft-office-excel-out-of-bounds-read","title":"Microsoft Office Excel out-of-bounds read","severity":"medium","exploited":false,"published_at":"2026-09-08T18:20:56.69+00:00","url":"https://junglewise.ai/threats/cve-2026-81400-microsoft-office-excel-out-of-bounds-read"},{"cve":"CVE-2026-81399","cvss":5.5,"epss":0.0054,"slug":"cve-2026-81399-microsoft-office-excel-buffer-over-read-information-disclosure","title":"Microsoft Office Excel buffer over-read information disclosure","severity":"medium","exploited":false,"published_at":"2026-09-08T18:20:56.56+00:00","url":"https://junglewise.ai/threats/cve-2026-81399-microsoft-office-excel-buffer-over-read-information-disclosure"},{"cve":"CVE-2026-81398","cvss":7.8,"epss":0.0047,"slug":"cve-2026-81398-microsoft-office-excel-heap-buffer-overflow","title":"Microsoft Office Excel heap buffer overflow","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:56.437+00:00","url":"https://junglewise.ai/threats/cve-2026-81398-microsoft-office-excel-heap-buffer-overflow"},{"cve":"CVE-2026-81395","cvss":5.5,"epss":0.0054,"slug":"cve-2026-81395-microsoft-office-excel-out-of-bounds-read","title":"Microsoft Office Excel out-of-bounds read","severity":"medium","exploited":false,"published_at":"2026-09-08T18:20:56.023+00:00","url":"https://junglewise.ai/threats/cve-2026-81395-microsoft-office-excel-out-of-bounds-read"},{"cve":"CVE-2026-81394","cvss":5.5,"epss":0.0055,"slug":"cve-2026-81394-microsoft-office-excel-information-disclosure","title":"Microsoft Office Excel information disclosure","severity":"medium","exploited":false,"published_at":"2026-09-08T18:20:55.897+00:00","url":"https://junglewise.ai/threats/cve-2026-81394-microsoft-office-excel-information-disclosure"},{"cve":"CVE-2026-81393","cvss":5.5,"epss":0.0054,"slug":"cve-2026-81393-microsoft-office-excel-out-of-bounds-read-in-information","title":"Microsoft Office Excel out-of-bounds read in information disclosure","severity":"medium","exploited":false,"published_at":"2026-09-08T18:20:55.767+00:00","url":"https://junglewise.ai/threats/cve-2026-81393-microsoft-office-excel-out-of-bounds-read-in-information"},{"cve":"CVE-2026-81392","cvss":5.5,"epss":0.0054,"slug":"cve-2026-81392-microsoft-office-excel-out-of-bounds-read","title":"Microsoft Office Excel out-of-bounds read","severity":"medium","exploited":false,"published_at":"2026-09-08T18:20:55.63+00:00","url":"https://junglewise.ai/threats/cve-2026-81392-microsoft-office-excel-out-of-bounds-read"},{"cve":"CVE-2026-81391","cvss":5.5,"epss":0.0054,"slug":"cve-2026-81391-microsoft-office-excel-uninitialized-resource-information","title":"Microsoft Office Excel uninitialized resource information disclosure","severity":"medium","exploited":false,"published_at":"2026-09-08T18:20:55.5+00:00","url":"https://junglewise.ai/threats/cve-2026-81391-microsoft-office-excel-uninitialized-resource-information"},{"cve":"CVE-2026-81390","cvss":5.5,"epss":0.0054,"slug":"cve-2026-81390-microsoft-office-excel-out-of-bounds-read","title":"Microsoft Office Excel out-of-bounds read","severity":"medium","exploited":false,"published_at":"2026-09-08T18:20:55.373+00:00","url":"https://junglewise.ai/threats/cve-2026-81390-microsoft-office-excel-out-of-bounds-read"},{"cve":"CVE-2026-81389","cvss":7,"epss":0.0037,"slug":"cve-2026-81389-microsoft-office-excel-heap-based-buffer-overflow","title":"Microsoft Office Excel heap-based buffer overflow","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:55.243+00:00","url":"https://junglewise.ai/threats/cve-2026-81389-microsoft-office-excel-heap-based-buffer-overflow"},{"cve":"CVE-2026-81387","cvss":5.5,"epss":0.0055,"slug":"cve-2026-81387-microsoft-office-excel-local-information-disclosure","title":"Microsoft Office Excel local information disclosure","severity":"medium","exploited":false,"published_at":"2026-09-08T18:20:54.973+00:00","url":"https://junglewise.ai/threats/cve-2026-81387-microsoft-office-excel-local-information-disclosure"},{"cve":"CVE-2026-81386","cvss":7.8,"epss":0.0047,"slug":"cve-2026-81386-microsoft-office-excel-heap-based-buffer-overflow","title":"Microsoft Office Excel heap-based buffer overflow","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:54.84+00:00","url":"https://junglewise.ai/threats/cve-2026-81386-microsoft-office-excel-heap-based-buffer-overflow"},{"cve":"CVE-2026-78518","cvss":8.8,"epss":0.0086,"slug":"cve-2026-78518-microsoft-office-excel-out-of-bounds-read-in-file-parsing","title":"Microsoft Office Excel out-of-bounds read in file parsing","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:47.293+00:00","url":"https://junglewise.ai/threats/cve-2026-78518-microsoft-office-excel-out-of-bounds-read-in-file-parsing"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":23},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":26},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"Microsoft Windows","slug":"windows-","vulnerabilities":963,"url":"https://junglewise.ai/threats/technologies/windows-"},{"name":"Microsoft Windows 10","slug":"windows-10","vulnerabilities":588,"url":"https://junglewise.ai/threats/technologies/windows-10"},{"name":"Microsoft Windows 11","slug":"windows-11","vulnerabilities":493,"url":"https://junglewise.ai/threats/technologies/windows-11"},{"name":"Microsoft Windows Server 2012","slug":"windows-server-2012","vulnerabilities":293,"url":"https://junglewise.ai/threats/technologies/windows-server-2012"},{"name":"Microsoft Windows Server 2016","slug":"windows-server-2016","vulnerabilities":213,"url":"https://junglewise.ai/threats/technologies/windows-server-2016"},{"name":"Microsoft Windows Server 2019","slug":"windows-server-2019","vulnerabilities":211,"url":"https://junglewise.ai/threats/technologies/windows-server-2019"},{"name":"Microsoft Windows 11 24h2","slug":"windows-11-24h2","vulnerabilities":192,"url":"https://junglewise.ai/threats/technologies/windows-11-24h2"},{"name":"Microsoft Windows Server 2022","slug":"windows-server-2022","vulnerabilities":178,"url":"https://junglewise.ai/threats/technologies/windows-server-2022"},{"name":"Microsoft Edge","slug":"edge-chromium-based","vulnerabilities":167,"url":"https://junglewise.ai/threats/technologies/edge-chromium-based"},{"name":"Microsoft Windows 11 25h2","slug":"windows-11-25h2","vulnerabilities":161,"url":"https://junglewise.ai/threats/technologies/windows-11-25h2"},{"name":"Microsoft Windows 11 Version 26H1","slug":"windows-11-version-26h1","vulnerabilities":135,"url":"https://junglewise.ai/threats/technologies/windows-11-version-26h1"},{"name":"Microsoft Windows Server 2025","slug":"windows-server-2025","vulnerabilities":124,"url":"https://junglewise.ai/threats/technologies/windows-server-2025"}],"technology":{"hub":true,"name":"Microsoft Office Excel","slug":"office-excel","vendor":{"name":"Microsoft","slug":"microsoft","url":"https://junglewise.ai/threats/vendors/microsoft"},"aliases":[],"category":"office-suite","url":"https://junglewise.ai/threats/technologies/office-excel"},"most_severe":[{"cve":"CVE-2026-78518","cvss":8.8,"epss":0.0086,"slug":"cve-2026-78518-microsoft-office-excel-out-of-bounds-read-in-file-parsing","title":"Microsoft Office Excel out-of-bounds read in file parsing","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:47.293+00:00","url":"https://junglewise.ai/threats/cve-2026-78518-microsoft-office-excel-out-of-bounds-read-in-file-parsing"},{"cve":"CVE-2026-65807","cvss":8.8,"epss":0.0082,"slug":"cve-2026-65807-microsoft-office-excel-type-confusion-remote-code-execution","title":"Microsoft Office Excel type confusion remote code execution","severity":"high","exploited":false,"published_at":"2026-08-11T17:19:00.43+00:00","url":"https://junglewise.ai/threats/cve-2026-65807-microsoft-office-excel-type-confusion-remote-code-execution"},{"cve":"CVE-2026-81960","cvss":7.8,"epss":0.0047,"slug":"cve-2026-81960-microsoft-office-excel-heap-buffer-overflow","title":"Microsoft Office Excel heap buffer overflow","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:59.953+00:00","url":"https://junglewise.ai/threats/cve-2026-81960-microsoft-office-excel-heap-buffer-overflow"},{"cve":"CVE-2026-81959","cvss":7.8,"epss":0.0047,"slug":"cve-2026-81959-microsoft-office-excel-heap-based-buffer-overflow","title":"Microsoft Office Excel heap-based buffer overflow","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:59.81+00:00","url":"https://junglewise.ai/threats/cve-2026-81959-microsoft-office-excel-heap-based-buffer-overflow"},{"cve":"CVE-2026-81954","cvss":7.8,"epss":0.0047,"slug":"cve-2026-81954-microsoft-office-excel-use-after-free-memory-corruption","title":"Microsoft Office Excel use after free memory corruption","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:58.987+00:00","url":"https://junglewise.ai/threats/cve-2026-81954-microsoft-office-excel-use-after-free-memory-corruption"},{"cve":"CVE-2026-81953","cvss":7.8,"epss":0.0047,"slug":"cve-2026-81953-microsoft-office-excel-stack-based-buffer-overflow","title":"Microsoft Office Excel stack-based buffer overflow","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:58.86+00:00","url":"https://junglewise.ai/threats/cve-2026-81953-microsoft-office-excel-stack-based-buffer-overflow"},{"cve":"CVE-2026-81951","cvss":7.8,"epss":0.0047,"slug":"cve-2026-81951-microsoft-office-excel-heap-based-buffer-overflow","title":"Microsoft Office Excel heap-based buffer overflow","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:58.59+00:00","url":"https://junglewise.ai/threats/cve-2026-81951-microsoft-office-excel-heap-based-buffer-overflow"},{"cve":"CVE-2026-81950","cvss":7.8,"epss":0.0047,"slug":"cve-2026-81950-microsoft-office-excel-double-free-memory-corruption","title":"Microsoft Office Excel double free memory corruption","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:58.46+00:00","url":"https://junglewise.ai/threats/cve-2026-81950-microsoft-office-excel-double-free-memory-corruption"},{"cve":"CVE-2026-81949","cvss":7.8,"epss":0.0047,"slug":"cve-2026-81949-microsoft-office-excel-integer-overflow-allows-local-code","title":"Microsoft Office Excel integer overflow allows local code execution","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:58.313+00:00","url":"https://junglewise.ai/threats/cve-2026-81949-microsoft-office-excel-integer-overflow-allows-local-code"},{"cve":"CVE-2026-81948","cvss":7.8,"epss":0.0047,"slug":"cve-2026-81948-microsoft-office-excel-heap-based-buffer-overflow","title":"Microsoft Office Excel heap-based buffer overflow","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:58.18+00:00","url":"https://junglewise.ai/threats/cve-2026-81948-microsoft-office-excel-heap-based-buffer-overflow"}],"generated_at":"2026-09-26T09:24:00.138874+00:00"}