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Description

Integer overflow or wraparound in Microsoft Office allows an authorized attacker to elevate privileges locally.

PUBLISHED Reserved 2026-02-11 | Published 2026-03-10 | Updated 2026-03-13 | Assigner microsoft




HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Problem types

CWE-190: Integer Overflow or Wraparound

CWE-416: Use After Free

Product status

16.0.1 (custom) before 16.0.19822.20000
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26134 (Microsoft Office Elevation of Privilege Vulnerability) vendor-advisory patch

cve.org (CVE-2026-26134)

nvd.nist.gov (CVE-2026-26134)

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