Microsoft Office Word Information Disclosure Vulnerability
CVE-2026-83951 is an information disclosure vulnerability in Microsoft Office Word (rated Important, CVSS 5.5).
1 version
Facts
- Microsoft id
CVE-2026-83951- Products
- Microsoft Office Word
- Severity
- Important
- Impact
- Information Disclosure
- CVSS
- 5.5
- CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
- Exploited
- No
- Publicly disclosed
- No
- Exploitability
- Exploitation Unlikely
- Customer action required
- Yes
- Release
- 2026-Sep
- Assigned by
- Microsoft
- Weakness
- CWE-126: Buffer Over-read
- MSRC revision
- 1.0
- Status pages
- Microsoft 365 apps status
- First captured by us
- (from our first import of this list)
- Microsoft last modified
- Source
- Security updates · open the original at Microsoft
Microsoft's revision notes
- Revision 1.0, 2026-09-08:
Information published.
Microsoft says
Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information locally. What type of information could be disclosed by this vulnerability?
What Microsoft changed
One version so far. If Microsoft edits it, each change shows here with what was removed and added.
First version we captured ·
The text as we first saw it
Seen by us · Microsoft's timestamp · Microsoft's page
Related changes
Other changes for Microsoft 365 apps
- Microsoft Office Word Remote Code Execution Vulnerability
- Microsoft Office Word Remote Code Execution Vulnerability
- Microsoft Office Excel Information Disclosure Vulnerability
- Microsoft Office Excel Remote Code Execution Vulnerability
- Microsoft Office Excel Remote Code Execution Vulnerability
- Microsoft Office Word Remote Code Execution Vulnerability
- Microsoft Office Word Remote Code Execution Vulnerability
- Microsoft Office Remote Code Execution Vulnerability
Last updated