PT-2025-6323 · Microsoft · Office+2

Published 2025-02-11 · Updated 2025-07-01 · CVE-2025-21383

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Microsoft Office, Excel, and 365 Apps for Enterprise (affected versions not specified)

Description: The issue is related to a memory out-of-bounds read. It may allow an attacker to disclose protected information. There is no information about the estimated number of potentially affected devices worldwide or real-world incidents where this issue was exploited.

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

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

BDU:2025-01540

CVE-2025-21383

Affected Products

365 Apps For Enterprise

Office Excel

Office

References · 8

• https://safe-surf.ru/specialists/bulletins-nkcki/718190 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-21383 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-21383 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-21383 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-01540 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21383 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-21383 · Security Note
• https://t.me/cvenotify/127276 · Telegram Post