Microsoft Excel heap buffer overflow vulnerability (CNVD-2026-29406)
🗓️ 15 Jul 2026 00:00:00Reported by China National Vulnerability DatabaseType 
cnvd🔗 www.cnvd.org.cn👁 10 Views
| Reporter | Title | Published | Views | Family All 15 |
|---|---|---|---|---|
 | The vulnerability of Microsoft Excel spreadsheet editors in Microsoft Office packages and Microsoft 365 Apps for Enterprise allows a hacker to execute arbitrary code. | 10 Aug 202600:00 | – | bdu_fstec |
 | CVE-2026-55947 | 14 Jul 202619:00 | – | circl |
 | CVE-2026-55947 | 14 Jul 202617:09 | – | cve |
 | CVE-2026-55947 Microsoft Excel Remote Code Execution Vulnerability | 14 Jul 202617:09 | – | cvelist |
 | EUVD-2026-44230 | 14 Jul 202617:09 | – | euvd |
 | Description of the security update for Office Online Server: July 14, 2026 (KB5002884) | 11 Aug 202614:00 | – | mskb |
| Description of the security update for Excel 2016: July 14, 2026 (KB5002886) | 31 Jul 202614:00 | – | mskb |
 | Security Updates for Microsoft Office Products (July 2026) (macOS) | 15 Jul 202600:00 | – | nessus |
| Security Updates for Microsoft Excel Products (July 2026) | 14 Jul 202600:00 | – | nessus |
| Security Updates for Microsoft Office Online Server (July 2026) | 14 Jul 202600:00 | – | nessus |
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31 Jul 2026 00:00Current
6.2Medium risk
Vulners AI Score6.2
CVSS 3.17.8
EPSS0.00303
SSVC