CVSS 3.1
8.8 highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HCVE-2026-78518
High (8.8) in microsoft. EPSS 0.9% chance of exploitation in the next 30 days.
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
Severity
- EPSS
- 0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-20, CWE-125
- Published
- Modified
- Record from
- the NVD, synced
Affected
- microsoft:365_apps
- microsoft:excel
- microsoft:microsoft_365
- microsoft:office_2016
- microsoft:office_2019
- microsoft:office_2021
- microsoft:office_2024