PT-2025-36865 · Microsoft · Office Excel

Hao Li · Published 2025-09-09 · Updated 2025-09-12 · CVE-2025-54899

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 (affected versions not specified)

Description: A free of memory issue not on the heap in Microsoft Office Excel may allow an unauthorized attacker to execute code locally. The vulnerability allows remote attackers to execute arbitrary code and affect the system.

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

RCE

Weakness Enumeration

CWE-590

Related Identifiers

BDU:2025-10963

CVE-2025-54899

Affected Products

Office Excel

References · 9

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-54899 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-54899 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-10963 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-54899 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-54899 · Security Note
• https://t.me/cveNotify/135301 · Telegram Post
• https://twitter.com/grok/status/1965559763414196669 · Twitter Post
• https://twitter.com/willia13928/status/1965559336278880674 · Twitter Post
• https://twitter.com/CVEnew/status/1965557746650042788 · Twitter Post