Vulnerability Description
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
CVSS Score
8.2
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | 365 Apps | - |
| Microsoft | Excel | 2016 |
| Microsoft | Microsoft 365 | - |
| Microsoft | Office 2019 | - |
| Microsoft | Office 2021 | - |
| Microsoft | Office 2024 | - |
| Microsoft | Office Online Server | - |
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-44822?
CVE-2026-44822 is a vulnerability with a CVSS score of 8.2 (HIGH). Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
How severe is CVE-2026-44822?
CVE-2026-44822 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-44822?
Check the references section above for vendor advisories and patch information. Affected products include: Microsoft 365 Apps, Microsoft Excel, Microsoft Microsoft 365, Microsoft Office 2019, Microsoft Office 2021.