Medium severity · published Apr 14, 2026
CVE-2026-33822
Microsoft Word Information Disclosure Vulnerability
6.1
CVSS
0.4%
EPSS
No
On KEV
Description
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 30% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OF
Office · Microsoft
All versions, or not specified · source: NVD
M3
Microsoft 365 Apps for Enterprise · Microsoft
16.0.1 before https://aka.ms/OfficeSecurityReleases · source: vendor
MO
Microsoft Office LTSC for Mac 2021 · Microsoft
16.0.1 before 16.108.26041219 · source: vendor
MO
Microsoft Office LTSC for Mac 2024 · Microsoft
16.0.0 before 16.108.26041219 · source: vendor
OL
Office Long Term Servicing Channel · Microsoft
2021; 2024 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-33822
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-33822
Vendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33822
More from Office
9.8
CVE-2024-21413
Microsoft Outlook Remote Code Execution Vulnerability
9.8
CVE-2023-23397
Microsoft Outlook Elevation of Privilege Vulnerability
8.8
CVE-2024-38189
Microsoft Project Remote Code Execution Vulnerability
8.8
CVE-2023-35311
Microsoft Outlook Security Feature Bypass Vulnerability
8.8
CVE-2019-1297
Microsoft Excel Remote Code Execution Vulnerability