Is CVE-2025-26642 actively exploited?

CVE-2025-26642 has no public evidence of in-the-wild exploitation as of 2025-07-09.

What is the CVSS score for CVE-2025-26642?

CVE-2025-26642 has a CVSS score of 7.8 (HIGH severity). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

How do I patch CVE-2025-26642?

Patch guidance is available from microsoft security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2025-26642.

Fix CVE-2025-26642 - HIGH microsoft 365 apps

Q: Which products are affected by CVE-2025-26642?

17 products: microsoft 365 apps, microsoft 365 apps, microsoft access, microsoft excel, microsoft excel, and 12 more.

Description

Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector: local
Complexity: low
Privileges: none
User Action: required
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-125 · Out-of-bounds Read CWE-190 · Integer Overflow

Metadata

Primary Vendor: MICROSOFT
Published: 4/8/2025
Last Modified: 7/9/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

microsoft : 365_appsmicrosoft : 365_appsmicrosoft : accessmicrosoft : excelmicrosoft : excelmicrosoft : officemicrosoft : officemicrosoft : officemicrosoft : officemicrosoft : office_long_term_servicing_channelmicrosoft : office_long_term_servicing_channelmicrosoft : office_long_term_servicing_channelmicrosoft : office_long_term_servicing_channelmicrosoft : office_long_term_servicing_channelmicrosoft : office_long_term_servicing_channelmicrosoft : office_online_servermicrosoft : sharepoint_server

Remediation Guidance

Executive Summary

View on NIST NVD