Skip to main content

365 Apps CVE-2026-26112

HIGH
Untrusted Pointer Dereference (CWE-822)
2026-03-10 secure@microsoft.com
Authentication Bypass Microsoft 365 Apps Excel Office Office Long Term Servicing Channel Office Online Server
7.8
CVSS 3.1 · NVD
Share

Severity by source

NVD PRIMARY
7.8 HIGH
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
CVE Published
Mar 10, 2026 - 18:18 nvd
HIGH 7.8

DescriptionCVE.org

Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

AnalysisAI

Microsoft Excel and Office products are vulnerable to local code execution through unsafe pointer dereferencing, requiring user interaction to trigger. An attacker with local access can exploit this flaw to achieve arbitrary code execution with full system privileges. No patch is currently available, leaving users of affected Office versions at risk.

Technical ContextAI

Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

RemediationAI

Monitor vendor advisories for a patch.

More in 365 Apps

View all
CVE-2024-21413 CRITICAL POC
9.8 Feb 13

Microsoft Outlook Remote Code Execution Vulnerability. Rated critical severity (CVSS 9.8), this vulnerability is remotel
CVE-2021-42292 HIGH
7.8 Nov 10

Microsoft Excel Security Feature Bypass Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authenti
CVE-2023-35311 HIGH
8.8 Jul 11

Microsoft Outlook Security Feature Bypass Vulnerability. Rated high severity (CVSS 8.8), this vulnerability is remotely

CVE-2023-21715 HIGH
7.3 Feb 14

Microsoft Publisher Security Feature Bypass Vulnerability. Rated high severity (CVSS 7.3), this vulnerability is low att
CVE-2026-21509 HIGH POC
7.8 Jan 26

Microsoft Office contains a security feature bypass (CVE-2026-21509, CVSS 7.8) where reliance on untrusted inputs in sec
CVE-2026-21514 HIGH
7.8 Feb 10

Microsoft Office Word contains a security decision bypass (CVE-2026-21514, CVSS 7.8) through reliance on untrusted input
CVE-2021-38646 HIGH
7.8 Sep 15

Microsoft Office Access Connectivity Engine Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vu
CVE-2021-34478 HIGH
7.8 Aug 12

Microsoft Office Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentic
CVE-2021-34501 HIGH
7.8 Jul 14

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentica
CVE-2025-47957 HIGH POC
8.4 Jun 10

Use-after-free vulnerability in Microsoft Office Word that allows local, unauthenticated attackers to execute arbitrary

CVE-2022-41106 HIGH
8.8 Nov 09

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 8.8), this vulnerability is remotely expl
CVE-2023-33148 HIGH POC
7.8 Jul 11

Microsoft Office Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack

Same weakness CWE-822 – Untrusted Pointer Dereference

View all
CVE-2024-21338 HIGH POC
7.8
CVE-2024-35250 HIGH POC
7.8
CVE-2023-21768 HIGH POC
7.8
CVE-2025-50165 CRITICAL
9.8
CVE-2026-67378 CRITICAL
9.0
CVE-2026-33120 HIGH
8.8
CVE-2023-1437 CRITICAL
9.8
CVE-2018-17893 CRITICAL
9.8

Same technique Authentication Bypass

View all
CVE-2015-3306 CRITICAL POC
10.0
CVE-2023-22515 CRITICAL POC
9.8
CVE-2012-4681 CRITICAL POC
9.8
CVE-2013-2465 CRITICAL POC
9.8
CVE-2011-3544 CRITICAL POC
9.8
CVE-2022-40684 CRITICAL POC
9.8
CVE-2025-61882 CRITICAL POC
9.8
CVE-2024-0012 CRITICAL POC
9.3

Share

CVE-2026-26112 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy