Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-42832

Severity CVSS v4.0:
Pending analysis
Type:
CWE-284 Improper Access Control
Publication date:
12/05/2026
Last modified:
16/05/2026

Description

Improper access control in Microsoft Office allows an unauthorized attacker to perform spoofing locally.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.70 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): None

Base Score 3.x
7.70
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:microsoft:excel:*:*:*:*:*:android:*:* 16.0.19822.20190 (excluding)
cpe:2.3:a:microsoft:office:2021:*:*:*:ltsc:macos:*:*
cpe:2.3:a:microsoft:office:2024:*:*:*:ltsc:macos:*:*
cpe:2.3:a:microsoft:word:*:*:*:*:*:android:*:* 16.0.19822.20190 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools