Technology · Microsoft
Microsoft Excel vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 24 vulnerabilities in Microsoft Excel: 0 in the last 7 days and 7 in the last 90 days, 6 of them critical and 6 exploited in the wild. The most recent, CVE-2026-81957, was published on 8 September 2026.
- Last 7 days
- 0
- Last 90 days
- 7
- Critical, all time
- 6
- Exploited in the wild
- 6
About Microsoft Excel
A spreadsheet application used for data analysis, calculation, and visualization.
Latest Microsoft Excel vulnerabilities
- CVE-2026-81957: Microsoft Excel out-of-bounds read remote code executionhighCVSS 7.8EPSS 0.5%
- CVE-2026-81397: Microsoft Excel heap-based buffer overflowhighCVSS 7.8EPSS 0.5%
- CVE-2026-81396: Microsoft Excel stack-based buffer overflowhighCVSS 7.8EPSS 0.5%
- CVE-2026-81388: Microsoft Excel stack-based buffer overflowhighCVSS 7.8EPSS 0.5%
- CVE-2026-78515: Microsoft Excel out-of-bounds read information disclosuremediumCVSS 6.5EPSS 0.9%
- CVE-2026-68794: Microsoft Excel heap-based buffer overflowhighCVSS 7.8EPSS 0.5%
- CVE-2026-68793: Microsoft Excel out-of-bounds read in parsinghighCVSS 7.8EPSS 0.5%
- CVE-2026-45469: Microsoft Office Excel integer underflow code executionhighCVSS 7.8
- CVE-2026-45459: Microsoft Office Excel protection mechanism failure security bypasslowCVSS 3.3
- CVE-2026-45455: Microsoft Office Excel out-of-bounds readlowCVSS 3.3
- CVE-2026-44823: Microsoft Office Excel integer underflow code executionhighCVSS 7.8
- CVE-2026-44822: Microsoft Office Excel out-of-bounds read information disclosurehighCVSS 8.2
- CVE-2026-44820: Microsoft Office Excel integer underflow code executionhighCVSS 7.8
- CVE-2026-44818: Microsoft Office Excel integer underflow code executionhighCVSS 7
- CVE-2026-44817: Microsoft Office Excel integer underflow code executionhighCVSS 7.8
- CVE-2026-40362: Microsoft Office Excel heap buffer overflowhighCVSS 7.8EPSS 0.1%
- CVE-2026-40360: Microsoft Office Excel out-of-bounds readhighCVSS 7.8EPSS 0.1%
- CVE-2026-40359: Microsoft Office Excel use after free code executionhighCVSS 7.8EPSS 0.1%
- CVE-2009-0238: Microsoft Excel remote code execution via malformed objectcriticalexploited in the wildCVSS 9.3EPSS 74.9%
- CVE-2007-0671: Microsoft Office Excel remote code execution vulnerabilitycriticalexploited in the wildCVSS 8.8EPSS 55.5%
- CVE-2009-0557: Microsoft Office Object Record Corruption Vulnerabilitycriticalexploited in the wildCVSS 9.3
- CVE-2016-7262: Microsoft Office Security Feature Bypass Vulnerabilitycriticalexploited in the wildCVSS 7.8
- CVE-2009-3129: Microsoft Excel Featheader Record Memory Corruption Vulnerabilitycriticalexploited in the wildCVSS 9.3
- CVE-2019-1297: Microsoft Excel Remote Code Execution Vulnerabilitycriticalexploited in the wildCVSS 8.8
Most severe Microsoft Excel vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2009-0238: Microsoft Excel remote code execution via malformed objectcriticalexploited in the wildCVSS 9.3EPSS 74.9%
- CVE-2009-0557: Microsoft Office Object Record Corruption Vulnerabilitycriticalexploited in the wildCVSS 9.3
- CVE-2009-3129: Microsoft Excel Featheader Record Memory Corruption Vulnerabilitycriticalexploited in the wildCVSS 9.3
- CVE-2007-0671: Microsoft Office Excel remote code execution vulnerabilitycriticalexploited in the wildCVSS 8.8EPSS 55.5%
- CVE-2019-1297: Microsoft Excel Remote Code Execution Vulnerabilitycriticalexploited in the wildCVSS 8.8
- CVE-2016-7262: Microsoft Office Security Feature Bypass Vulnerabilitycriticalexploited in the wildCVSS 7.8
- CVE-2026-44822: Microsoft Office Excel out-of-bounds read information disclosurehighCVSS 8.2
- CVE-2026-81957: Microsoft Excel out-of-bounds read remote code executionhighCVSS 7.8EPSS 0.5%
- CVE-2026-81397: Microsoft Excel heap-based buffer overflowhighCVSS 7.8EPSS 0.5%
- CVE-2026-81396: Microsoft Excel stack-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 | 2 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 5 | 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/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 Excel vulnerabilities", https://junglewise.ai/threats/technologies/excel, 26 September 2026.