CVE-2026-45455
Microsoft Excel Information Disclosure Vulnerability
At a glance
- Severity
- LOW 3.3
- EPSS
- EPSS 0.63 % · percentile 50 (2026-10-27)
- State
- PUBLISHED
- Published
- Updated
- Assigner
- microsoft
- NVD status
- Modified
Description
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
Scores
| Version | Score | Vector | Scored by |
|---|
| CVSS 3.1 | LOW 3.3 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C | microsoft |
| CVSS 3.1 | LOW 3.3 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N | NVD · secure@microsoft.com (Secondary) |
| CVSS 3.1 | MEDIUM 4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N | NVD · nvd@nist.gov (Primary) |
Weaknesses (CWE)
European references
CERT-FR advisories
Affected configurations (NVD CPE)
cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:*cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:x64:*cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:x86:*cpe:2.3:a:microsoft:microsoft_365:-:*:*:*:*:macos:*:*cpe:2.3:a:microsoft:office_2019:-:*:*:*:*:*:x64:*cpe:2.3:a:microsoft:office_2019:-:*:*:*:*:*:x86:*cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:-:x64:*cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:-:x86:*cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:macos:-:*cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x64:*cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x86:*cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:macos:-:*cpe:2.3:a:microsoft:office_online_server:-:*:*:*:*:*:*:*
Affected products
References
Sources
