PT-2026-58546 · Microsoft · Office

Published 2026-07-14 · Updated 2026-07-14 · CVE-2026-55042

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Microsoft Office (affected versions not specified)

Description Use of an uninitialized resource in Microsoft Office allows an unauthorized attacker to disclose sensitive information locally and affect the system.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Use of Uninitialized Resource

Weakness Enumeration

CWE-908

Related Identifiers

CVE-2026-55042

Affected Products

Office

References · 3

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55042 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-55042 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-55042 · Security Note