Microsoft Office Elevation of Privilege Vulnerability

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-26134
StatePUBLISHED
Assignermicrosoft
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-10 18:18:42 UTC
Updated2026-03-13 17:06:18 UTC
DescriptionInteger overflow or wraparound in Microsoft Office allows an authorized attacker to elevate privileges locally.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.000470000 probability, percentile 0.150190000 (date 2026-05-28)

Problem Types: CWE-190 | CWE-416 | CWE-190 CWE-190: Integer Overflow or Wraparound | CWE-416 CWE-416: Use After Free

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNACVSS7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Microsoft Office All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Microsoft Microsoft Office For Android affected 16.0.1 16.0.19822.20000 custom Not specified

References

ReferenceSourceLinkTags
msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26134 [email protected] msrc.microsoft.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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