7.8High

CVE-2025-21186Microsoft Access Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise; Microsoft Microsoft Access 2016; Microsoft Microsoft Access 2016 (32-bit edition); Microsoft Microsoft Office 2019 Published: 2025-01-14 21:04 (1 year ago)

Description

Microsoft Access Remote Code Execution Vulnerability

Weakness (CWE): CWE-122

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

Vendor	Product	Versions
microsoft	365 apps	16.0.1 – < https://aka.ms/OfficeSecurityReleases
microsoft	access	2016
microsoft	access 2016	16.0.0 – < 16.0.5483.1001
Microsoft	Microsoft 365 Apps for Enterprise	16.0.1 – < https://aka.ms/OfficeSecurityReleases
Microsoft	Microsoft Access 2016	16.0.0 – < 16.0.5483.1001
Microsoft	Microsoft Access 2016 (32-bit edition)	16.0.0 – < 16.0.5483.1001
Microsoft	Microsoft Office 2019	19.0.0 – < https://aka.ms/OfficeSecurityReleases
Microsoft	Microsoft Office LTSC 2021	16.0.1 – < https://aka.ms/OfficeSecurityReleases
Microsoft	Microsoft Office LTSC 2024	16.0.0 – < https://aka.ms/OfficeSecurityReleases
microsoft	office	2019
microsoft	office 2019	19.0.0 – < https://aka.ms/OfficeSecurityReleases
microsoft	office 2021	16.0.1 – < https://aka.ms/OfficeSecurityReleases
microsoft	office 2024	16.0.0 – < https://aka.ms/OfficeSecurityReleases
microsoft	office long term servicing channel	2021

References and patches

Microsoft Access Remote Code Execution Vulnerability vendor-advisorypatchPatchVendor Advisory

CPE matches (NVD) (9)

cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*
cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:*
cpe:2.3:a:microsoft:access:2016:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:office:2019:*:*:*:*:-:x64:*
cpe:2.3:a:microsoft:office:2019:*:*:*:*:-:x86:*
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:*:x64:*
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:*:x86:*
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:*:x64:*
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:*:x86:*

CVSS score

7.8High

Source: microsoft · CVSS 3.1

Attack vector: Local
Attack complexity: Low
Privileges required: None
User interaction: Required
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

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

All scores (2)

cna	CVSS 3.1	7.8High
secure@microsoft.com	CVSS 3.1	7.8High

EPSS (chance of exploitation in 30 days)

1.19%

higher than 68% of all CVEs

CISA assessment (SSVC)

Exploitation: none
Automatable: no
Technical impact: total

Timeline

ID reserved2024-12-05
Published2025-01-14 21:04
Reached IP-DB2026-10-25 00:02
Last updated2026-06-17 11:42

Assigned by (CNA): microsoft
NVD status: Analyzed

View at source: CVE.org · NVD

Get told when these products get a new vulnerability

Turn on email alerts

Free · with an account · switch off any time

Recent CVEs in the same product — Microsoft Office / 365 Apps

8.8High

CVE-2026-120003 yesterday

Microsoft Office Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise; Microsoft Microsoft Office 365 for Mac; Microsoft Microsoft Office LTSC 2021; Microsoft Microsoft Office LTSC 2024

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.

8.8High

CVE-2026-120001 yesterday

Microsoft Office PowerPoint Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise; Microsoft Microsoft Office 365 for Mac; Microsoft Microsoft Office LTSC 2021; Microsoft Microsoft Office LTSC 2024

Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.

6.5Medium

CVE-2026-119999 yesterday

Microsoft Office Excel Information Disclosure Vulnerability

Microsoft Microsoft 365 Apps for Enterprise; Microsoft Microsoft Office 365 for Mac; Microsoft Microsoft Office LTSC 2021; Microsoft Microsoft Office LTSC 2024

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.

7.8High

CVE-2026-119997 yesterday

Microsoft Office Outlook Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise; Microsoft Microsoft Office LTSC 2021; Microsoft Microsoft Office LTSC 2024

Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code locally.

6.5Medium

CVE-2026-119998 yesterday

Microsoft Office Security Feature Bypass Vulnerability

Microsoft Microsoft 365 Apps for Enterprise; Microsoft Microsoft Office LTSC 2021; Microsoft Microsoft Office LTSC 2024

Product ui does not warn user of unsafe actions in Microsoft Office allows an unauthorized attacker to bypass a security feature over a network.

7.5High

CVE-2026-119995 yesterday

Microsoft Office Outlook Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise; Microsoft Microsoft Office LTSC 2021; Microsoft Microsoft Office LTSC 2024

Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.