The vulnerability of Microsoft Excel spreadsheet editors in Microsoft Office packages and Microsoft 365 Apps for Enterprise allows a perpetrator to execute arbitrary code.
🗓️ 22 May 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 9 Views
| Reporter | Title | Published | Views | Family All 19 |
|---|---|---|---|---|
 | CVE-2026-40362 | 12 May 202616:59 | – | attackerkb |
 | CVE-2026-40362 | 12 May 202615:53 | – | circl |
 | Microsoft Excel 安全漏洞 | 12 May 202600:00 | – | cnnvd |
 | CVE-2026-40362 | 12 May 202616:59 | – | cve |
 | CVE-2026-40362 Microsoft Excel Remote Code Execution Vulnerability | 12 May 202616:59 | – | cvelist |
 | EUVD-2026-29644 | 12 May 202618:30 | – | euvd |
 | Description of the security update for Excel 2016: May 12, 2026 (KB5002865) | 12 May 202614:00 | – | mskb |
| Description of the security update for Office Online Server: May 12, 2026 (KB5002871) | 12 May 202614:00 | – | mskb |
 | KLA91035 Multiple vulnerabilities in Microsoft Office | 12 May 202600:00 | – | kaspersky |
 | Security Updates for Microsoft Office Products (May 2026) (macOS) | 12 May 202600:00 | – | nessus |
10
Node
OR
Data
Build on a solid foundation with Vulners data
We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data
Api
Power your application with Vulners API
The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access
App
Assess and manage vulnerabilities with Vulners tools
Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation
22 May 2026 00:00Current
6.3Medium risk
Vulners AI Score6.3
CVSS 27.2
CVSS 37.8
EPSS0.00328