CVE-2026-26113
published 2026-03-10CVE-2026-26113: Untrusted pointer dereference in Microsoft Office allows an unauthorized attacker to execute code locally.
PriorityP346high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.55%
42.1th percentile
Untrusted pointer dereference in Microsoft Office allows an unauthorized attacker to execute code locally.
Affected
30 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | microsoft_365_apps_for_enterprise | >= 16.0.1 < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| microsoft | microsoft_office_2016 | >= 16.0.0 < 16.0.5543.1000 | 16.0.5543.1000 |
| microsoft | microsoft_office_2019 | >= 19.0.0 < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| microsoft | microsoft_office_ltsc_2021 | >= 16.0.1 < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| microsoft | microsoft_office_ltsc_2024 | >= 16.0.0 < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| microsoft | microsoft_office_ltsc_for_mac_2021 | >= 16.0.1 < 16.107.26030819 | 16.107.26030819 |
| microsoft | microsoft_office_ltsc_for_mac_2024 | >= 16.0.0 < 16.107.26030819 | 16.107.26030819 |
| microsoft | microsoft_sharepoint_enterprise_server_2016 | >= 16.0.0 < 16.0.5543.1000 | 16.0.5543.1000 |
| microsoft | microsoft_sharepoint_server_2019 | >= 16.0.0 < 16.0.10417.20102 | 16.0.10417.20102 |
| microsoft | microsoft_sharepoint_server_subscription_edition | >= 16.0.0 < 16.0.19725.20076 | 16.0.19725.20076 |
| microsoft | office | — | — |
| microsoft | office | — | — |
| microsoft | office_long_term_servicing_channel | — | — |
| microsoft | office_long_term_servicing_channel | — | — |
| microsoft | sharepoint_server | < 16.0.19725.20076 | 16.0.19725.20076 |
| microsoft | sharepoint_server | — | — |
| microsoft | sharepoint_server | — | — |
| msrc | microsoft_365_apps_for_enterprise_for_32-bit_systems | — | — |
| msrc | microsoft_365_apps_for_enterprise_for_64-bit_systems | — | — |
| msrc | microsoft_office_2016 | — | — |
| msrc | microsoft_office_2019_for_32-bit_editions | — | — |
| msrc | microsoft_office_2019_for_64-bit_editions | — | — |
| msrc | microsoft_office_ltsc_2021_for_64-bit_editions | — | — |
| msrc | microsoft_office_ltsc_2024_for_32-bit_editions | — | — |
| msrc | microsoft_office_ltsc_2024_for_64-bit_editions | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vendor_msrc8.4HIGH
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Microsoft
Microsoft Office Remote Code Execution Vulnerability
vendor_msrc·2026-03-10·CVSS 8.4
CVE-2026-26113 [HIGH] CWE-822 Microsoft Office Remote Code Execution Vulnerability
Microsoft Office Remote Code Execution Vulnerability
Description: Untrusted pointer dereference in Microsoft Office allows an unauthorized attacker to execute code locally.
FAQ: According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution?
The word Remote in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally. This means an attacker or victim needs to execute code from the local machine to exploit the vulnerability.
FAQ: Is the Preview Pane an attack vector for this vulnerability?
Yes, the Preview Pane is an attack vector.
FAQ: There are multiple update packages available for some of the affected
GHSA
GHSA-55wj-q5rx-5h35: Untrusted pointer dereference in Microsoft Office allows an unauthorized attacker to execute code locally
ghsa_unreviewed·2026-03-10
CVE-2026-26113 [HIGH] CWE-822 GHSA-55wj-q5rx-5h35: Untrusted pointer dereference in Microsoft Office allows an unauthorized attacker to execute code locally
Untrusted pointer dereference in Microsoft Office allows an unauthorized attacker to execute code locally.
No detection rules found.
No public exploits indexed.
Sophos
March Patch Tuesday visits 15 product families
blogs_sophos·2026-03-13
March Patch Tuesday visits 15 product families
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Krebs
Microsoft Patch Tuesday, March 2026 Edition
blogs_krebs·2026-03-11·CVSS 8.8
CVE-2026-21262 [HIGH] Microsoft Patch Tuesday, March 2026 Edition
Microsoft Corp. today pushed security updates to fix at least 77 vulnerabilities in its Windows operating systems and other software. There are no pressing “zero-day” flaws this month (compared to February’s five zero-day treat), but as usual some patches may deserve more rapid attention from organizations using Windows. Here are a few highlights from this month’s Patch Tuesday.
Two of the bugs Microsoft patched today were publicly disclosed previously. CVE-2026-21262 is a weakness that allows an attacker to elevate their privileges on SQL Server 2016 and later editions.
“This isn’t just any elevation of privilege vulnerability, either; the advisory notes that an authorized attacker can elevate privileges to sysadmin over a network,” Rapid7’s Adam Barnett said. “The CVSS v3 base score of
Krebs
Microsoft Patch Tuesday, March 2026 Edition
blogs_krebs·2026-03-11·CVSS 8.8
CVE-2026-2126 [HIGH] Microsoft Patch Tuesday, March 2026 Edition
Microsoft Corp. today pushed security updates to fix at least 77 vulnerabilities in its Windows operating systems and other software. There are no pressing “zero-day” flaws this month (compared to February’s five zero-day treat), but as usual some patches may deserve more rapid attention from organizations using Windows. Here are a few highlights from this month’s Patch Tuesday.
Image: Shutterstock, @nwz.
Two of the bugs Microsoft patched today were publicly disclosed previously. CVE-2026-21262 is a weakness that allows an attacker to elevate their privileges on SQL Server 2016 and later editions.
“This isn’t just any elevation of privilege vulnerability, either; the advisory notes that an authorized attacker can elevate privileges to sysadmin over a network,” Rapid7’s Adam Barnett said
Talos
Microsoft Patch Tuesday for March 2026 — Snort rules and prominent vulnerabilities
blogs_talos·2026-03-10·CVSS 8.8
CVE-2026-26110 [HIGH] Microsoft Patch Tuesday for March 2026 — Snort rules and prominent vulnerabilities
Microsoft has released its monthly security update for March 2026 which includes 79 vulnerabilities, including three that Microsoft marked as “critical.” The remaining vulnerabilities listed are classified as “important.” Microsoft assessed that exploitation of the three “critical” vulnerabilities is “less likely.”
CVE-2026-26110 and CVE-2026-26113 are “critical” Microsoft Office Remote Code Execution Vulnerabilities that could allow an unauthorized attacker to execute code locally; the former is a type confusion issue caused by access to a resource using an incompatible type, and the latter is an untrusted pointer dereference.
CVE-2026-26144 is a “critical” information disclosure vulnerability affecting Microsoft Excel. This vulnerability is due to improper neutralization of input in Mi
Talos
Microsoft Patch Tuesday for March 2026 — Snort rules and prominent vulnerabilities
blogs_talos·2026-03-10·CVSS 8.8
CVE-2026-26110 [HIGH] Microsoft Patch Tuesday for March 2026 — Snort rules and prominent vulnerabilities
## Microsoft Patch Tuesday for March 2026 — Snort rules and prominent vulnerabilities
Microsoft has released its monthly security update for March 2026 which includes 79 vulnerabilities, including three that Microsoft marked as “critical.” The remaining vulnerabilities listed are classified as “important.” Microsoft assessed that exploitation of the three “critical” vulnerabilities is “less likely.”
CVE-2026-26110 and CVE-2026-26113 are “critical” Microsoft Office Remote Code Execution Vulnerabilities that could allow an unauthorized attacker to execute code locally; the former is a type confusion issue caused by access to a resource using an incompatible type, and the latter is an untrusted pointer dereference.
CVE-2026-26144 is a “critical” information disclosure vulnerability affecti
Tenable
March 2026 Microsoft Patch Tuesday | Tenable®
blogs_tenable·2026-03-10·CVSS 8.8
CVE-2026-21262 [HIGH] March 2026 Microsoft Patch Tuesday | Tenable®
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# Microsoft’s March 2026 Patch Tuesday Addresses 83 CVEs (CVE-2026-21262, CVE-2026-26127)
Research Special Operations
March 10, 2026
4 Min Read
1. 8Critical
2. 75Important
3. 0Moderate
4. 0Low
Microsoft addresses 83 CVEs including two vulnerabilities that were publicly disclosed prior to a patch being released.
Microsoft patched 83 CVEs in its March 2026 Patch Tuesday release, with eight rated critical and 75 rated as important. Our counts omitted one CVE (CVE-2026-26030) assigned by GitHub.
This month’s update includes patches for:
- .NET
- ASP.NET Core
- Active Directory Domain Services
- Azure Arc
- Azure Compute Gallery
- Azure Entra ID
- Azure IoT Explorer
- Azure Linux Virtual Machines
- Azure MCP Server
- Azure Portal Windows Admin Cen
Qualys
Microsoft and Adobe Patch Tuesday, March 2026 Security Update Review | Qualys
blogs_qualys·2026-03-10
Microsoft and Adobe Patch Tuesday, March 2026 Security Update Review | Qualys
#### Table of Contents
- Microsoft Patch Tuesday forMarch2026
- Adobe Patches for March 2026
- Zero-day Vulnerabilities Patched inMarchPatch Tuesday Edition
- Critical Severity Vulnerabilities Patched inMarchPatch Tuesday Edition
- Other Microsoft Vulnerability Highlights
- Microsoft Release Summary
- Discover and Prioritize Vulnerabilities inVulnerability Management, Detection & Response (VMDR)
- Rapid Response with TruRisk Eliminate
- Qualys Monthly Webinar Series
Microsoft has rolled out its March 2026 Patch Tuesday updates, delivering a fresh batch of security fixes designed to keep Windows environments protected from emerging threats. The release addresses multiple vulnerabilities spanning Windows components and other Microsoft products. Here’s a quick breakdown of what you need to
Tenable
March 2026 Microsoft Patch Tuesday | Tenable®
blogs_tenable·2026-03-10
March 2026 Microsoft Patch Tuesday | Tenable®
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Bleepingcomputer
Microsoft March 2026 Patch Tuesday fixes 2 zero-days, 79 flaws
blogs_bleepingcomputer·2026-03-10·CVSS 8.8
[HIGH] Microsoft March 2026 Patch Tuesday fixes 2 zero-days, 79 flaws
## Microsoft March 2026 Patch Tuesday fixes 2 zero-days, 79 flaws
## Lawrence Abrams
The number of bugs in each vulnerability category is listed below:
46 Elevation of Privilege Vulnerabilities
2 Security Feature Bypass Vulnerabilities
18 Remote Code Execution Vulnerabilities
10 Information Disclosure Vulnerabilities
4 Denial of Service Vulnerabilities
4 Spoofing Vulnerabilities
When BleepingComputer reports on Patch Tuesday security updates, we only count those released by Microsoft today. Therefore, the number of flaws does not include 9 Microsoft Edge flaws, Mariner, Payment Orchestrator Service, Azure, and Microsoft Devices Pricing Program flaws fixed earlier this month.
To learn more about the non-security updates released today, you can review our dedicated articles on the
Qualys
Microsoft and Adobe Patch Tuesday, March 2026 Security Update Review
blogs_qualys·2026-03-10
Microsoft and Adobe Patch Tuesday, March 2026 Security Update Review
## Table of Contents
Microsoft Patch Tuesday forMarch2026
Adobe Patches for March 2026
Zero-day Vulnerabilities Patched inMarchPatch Tuesday Edition
Critical Severity Vulnerabilities Patched inMarchPatch Tuesday Edition
Other Microsoft Vulnerability Highlights
Microsoft Release Summary
Discover and Prioritize Vulnerabilities inVulnerability Management, Detection & Response (VMDR)
Rapid Response with TruRisk Eliminate
Qualys Monthly Webinar Series
Microsoft has rolled out its March 2026 Patch Tuesday updates, delivering a fresh batch of security fixes designed to keep Windows environments protected from emerging threats. The release addresses multiple vulnerabilities spanning Windows components and other Microsoft products. Here’s a quick breakdown of what you need to know.
## Mi
Crowdstrike
March 2026 Patch Tuesday: Updates and Analysis
blogs_crowdstrike
March 2026 Patch Tuesday: Updates and Analysis
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4 Ways Businesses Use CrowdStrike Charlotte AI to Transform Security Operations Mar 12, 2026
Enhanced Network Visibility: A Dive into the Falcon macOS Sensor's New Capabilities Mar 11, 2026
March 2026 Patch Tuesday: Eight Critical Vulnerabilities and Two Publicly Disclosed Among 82 CVEs Patched Mar 10, 2026
Falcon for XIoT Extends Asset Protection to Healthcare Environments Mar 09, 2026
Video Highli
Sophos
March Patch Tuesday visits 15 product families
blogs_sophos
March Patch Tuesday visits 15 product families
Share This
Microsoft on Tuesday released 84 patches affecting 15 product families – including a few you’ve possibly never encountered. Eight of the addressed issues are considered by Microsoft to be of Critical severity, though none of those affect Windows, nor are they expected to be exploited within the next 30 days. In addition, five of those Critical issues were in fact addressed by Microsoft in advance of Patch Tuesday itself, as we’ll discuss below. Twenty-two have a CVSS base score of 8.0 or higher, including one with a 9.8 base score. None are known to be under active exploit in the wild, but two are publicly disclosed so far.
At patch time, six CVEs are judged more likely to be exploited in the next 30 days by the company’s estimation. Various of this month’s issues are amenable
Wiz
CVE-2026-26113 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 8.4
CVE-2026-26113 [HIGH] CVE-2026-26113 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-26113 :
vulnerability analysis and mitigation
Untrusted pointer dereference in Microsoft Office allows an unauthorized attacker to execute code locally.
Source : NVD
## 7.8
Score
Published March 10, 2026
Severity HIGH
CNA Score 8.4
Has Public Exploit No
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 15.2
Exploitation Probability (EPSS) N/A
Affected packages and libraries
cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*
Sources
Windows Severity HIGH Has Fix Added at: Mar 13, 2026
Windows Severity HIGH Has Fix Added at: Mar 16, 2026
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2026-03-10
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