Technology · Microsoft
Microsoft Office Excel vulnerabilities
Updated . Rebuilt every hour.
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.
- Last 7 days
- 0
- Last 90 days
- 49
- Critical, all time
- 0
- Exploited in the wild
- 0
Latest Microsoft Office Excel vulnerabilities
- CVE-2026-85875: Microsoft Office Excel out-of-bounds readmediumCVSS 5.5EPSS 0.5%
- CVE-2026-81960: Microsoft Office Excel heap buffer overflowhighCVSS 7.8EPSS 0.5%
- CVE-2026-81959: Microsoft Office Excel heap-based buffer overflowhighCVSS 7.8EPSS 0.5%
- CVE-2026-81958: Microsoft Office Excel information disclosure via uninitialized resourcemediumCVSS 5.5EPSS 0.5%
- CVE-2026-81954: Microsoft Office Excel use after free memory corruptionhighCVSS 7.8EPSS 0.5%
- CVE-2026-81953: Microsoft Office Excel stack-based buffer overflowhighCVSS 7.8EPSS 0.5%
- CVE-2026-81951: Microsoft Office Excel heap-based buffer overflowhighCVSS 7.8EPSS 0.5%
- CVE-2026-81950: Microsoft Office Excel double free memory corruptionhighCVSS 7.8EPSS 0.5%
- CVE-2026-81949: Microsoft Office Excel integer overflow allows local code executionhighCVSS 7.8EPSS 0.5%
- CVE-2026-81948: Microsoft Office Excel heap-based buffer overflowhighCVSS 7.8EPSS 0.5%
- CVE-2026-81947: Microsoft Office Excel heap-based buffer overflowhighCVSS 7.8EPSS 0.5%
- CVE-2026-81401: Microsoft Office Excel type confusion in resource accessmediumCVSS 5.5EPSS 0.5%
- CVE-2026-81400: Microsoft Office Excel out-of-bounds readmediumCVSS 5.5EPSS 0.5%
- CVE-2026-81399: Microsoft Office Excel buffer over-read information disclosuremediumCVSS 5.5EPSS 0.5%
- CVE-2026-81398: Microsoft Office Excel heap buffer overflowhighCVSS 7.8EPSS 0.5%
- CVE-2026-81395: Microsoft Office Excel out-of-bounds readmediumCVSS 5.5EPSS 0.5%
- CVE-2026-81394: Microsoft Office Excel information disclosuremediumCVSS 5.5EPSS 0.5%
- CVE-2026-81393: Microsoft Office Excel out-of-bounds read in information disclosuremediumCVSS 5.5EPSS 0.5%
- CVE-2026-81392: Microsoft Office Excel out-of-bounds readmediumCVSS 5.5EPSS 0.5%
- CVE-2026-81391: Microsoft Office Excel uninitialized resource information disclosuremediumCVSS 5.5EPSS 0.5%
- CVE-2026-81390: Microsoft Office Excel out-of-bounds readmediumCVSS 5.5EPSS 0.5%
- CVE-2026-81389: Microsoft Office Excel heap-based buffer overflowhighCVSS 7EPSS 0.4%
- CVE-2026-81387: Microsoft Office Excel local information disclosuremediumCVSS 5.5EPSS 0.5%
- CVE-2026-81386: Microsoft Office Excel heap-based buffer overflowhighCVSS 7.8EPSS 0.5%
- CVE-2026-78518: Microsoft Office Excel out-of-bounds read in file parsinghighCVSS 8.8EPSS 0.9%
Most severe Microsoft Office Excel vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-78518: Microsoft Office Excel out-of-bounds read in file parsinghighCVSS 8.8EPSS 0.9%
- CVE-2026-65807: Microsoft Office Excel type confusion remote code executionhighCVSS 8.8EPSS 0.8%
- CVE-2026-81960: Microsoft Office Excel heap buffer overflowhighCVSS 7.8EPSS 0.5%
- CVE-2026-81959: Microsoft Office Excel heap-based buffer overflowhighCVSS 7.8EPSS 0.5%
- CVE-2026-81954: Microsoft Office Excel use after free memory corruptionhighCVSS 7.8EPSS 0.5%
- CVE-2026-81953: Microsoft Office Excel stack-based buffer overflowhighCVSS 7.8EPSS 0.5%
- CVE-2026-81951: Microsoft Office Excel heap-based buffer overflowhighCVSS 7.8EPSS 0.5%
- CVE-2026-81950: Microsoft Office Excel double free memory corruptionhighCVSS 7.8EPSS 0.5%
- CVE-2026-81949: Microsoft Office Excel integer overflow allows local code executionhighCVSS 7.8EPSS 0.5%
- CVE-2026-81948: Microsoft Office Excel heap-based buffer overflowhighCVSS 7.8EPSS 0.5%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 23 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 26 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/office-excel.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Microsoft Office Excel vulnerabilities", https://junglewise.ai/threats/technologies/office-excel, 26 September 2026.