CVE-2026-55050
Microsoft Word Information Disclosure Vulnerability
MEDIUM
5.5
CVSS Score
Published: July 14, 2026 at 05:08 PM UTC
Updated: October 28, 2026 at 08:05 PM UTC
12 products affected across 1 vendor365 AppsOffice 2021Office 2019
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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.6%
SSVC
No known exploit
Description
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Affected range stops below 16.111.26071215, so it looks safe — our inference, not a vendor statement
Affected range stops below https://aka.ms/OfficeSecurityReleases, so it looks safe — our inference, not a vendor statement
All versions
Affected range stops below https://aka.ms/OfficeSecurityReleases, so it looks safe — our inference, not a vendor statement
v < 16.111.2607121516.0.1
Affected range stops below 16.111.26071215, so it looks safe — our inference, not a vendor statement
Affected range stops below https://aka.ms/OfficeSecurityReleases, so it looks safe — our inference, not a vendor statement
v < 16.111.2607121516.0.0
Affected range stops below 16.111.26071215, so it looks safe — our inference, not a vendor statement
Affected range stops below https://aka.ms/OfficeSecurityReleases, so it looks safe — our inference, not a vendor statement
1.0.0 ≤ v < 16.111.26071215
Affected range stops below 16.111.26071215, so it looks safe — our inference, not a vendor statement
v < 16.0.10417.20175
Affected range stops below 16.0.10417.20175, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.0.19725.20434, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.0.5561.1000, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.0.5561.1001, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
Vendor AdvisoryPatch
Source: cverecord
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55050SSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- NONE
- Availability
- NONE
Vector?
Quick Info
StatusANALYZED
CWE
CWE-125
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