CVE-2021-43905
9.6
CRITICAL · CVSS 3.1 · EPSS 3% (pctl 87)
In your normal cycle
Critical by CVSS (9.6), but no sign of active exploitation.
Description
Microsoft Office app Remote Code Execution Vulnerability
Scoring
| CVSS | 9.6 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
| EPSS | 2.98% — more likely to be exploited than 87% of all CVEs |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2021-12-15 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| microsoft | 365 copilot |
References
→ the Explorer · watch your stack · NVD