CVE-2026-44820CWE-125
Microsoft Excel Remote Code Execution Vulnerability
High · published June 9, 2026
What it is
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
The record
Technical detail
- CVSS v3.1
- 7.8 · HIGH
- Vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
- CVSS v4.0
- Not supplied
- EPSS
- 0.00466 · 39.4th percentile
- Weakness
- CWE-125 · Out-of-bounds Read
- Published
- 2026-06-09T17:04Z
EPSS history
Timeline