The vulnerability of Microsoft Office and Microsoft 365 Apps for Enterprise packages relates to the execution of operations beyond the buffer in memory, allowing an attacker to execute arbitrary code.
🗓️ 21 Sep 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 3 Views
| Reporter | Title | Published | Views | Family All 17 |
|---|---|---|---|---|
 | CVE-2026-78510 | 8 Sep 202620:13 | – | circl |
 | CVE-2026-78510 | 8 Sep 202617:13 | – | cve |
 | CVE-2026-78510 Microsoft Outlook and Word Remote Code Execution Vulnerability | 8 Sep 202617:13 | – | cvelist |
 | EUVD-2026-73308 | 8 Sep 202617:13 | – | euvd |
 | Description of the security update for Office 2016: September 08, 2026 (KB5002916) | 8 Sep 202614:00 | – | mskb |
| Description of the security update for Word 2016: September 08, 2026 (KB5002923) | 8 Sep 202614:00 | – | mskb |
 | Security Updates for Microsoft Office Products (September 2026) (macOS) | 16 Sep 202600:00 | – | nessus |
| Security Updates for Microsoft Office Products (September 2026) | 9 Sep 202600:00 | – | nessus |
| Security Updates for Microsoft Word Products C2R (September 2026) | 10 Sep 202600:00 | – | nessus |
 | Microsoft Outlook and Word Remote Code Execution Vulnerability | 8 Sep 202614:00 | – | mscve |
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21 Sep 2026 00:00Current
7.5High risk
Vulners AI Score7.5
CVSS 39.8
CVSS 210
EPSS0.00954