PT-2025-36866 · Microsoft · Office Excel

Devoke + 3 · Published 2025-09-09 · Updated 2025-09-16 · CVE-2025-54900

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 heap-based buffer overflow exists in Microsoft Office Excel. This issue allows a remote attacker to execute arbitrary code on the affected system.

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

RCE

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

BDU:2025-10961

CVE-2025-54900

Affected Products

Office Excel

References · 8

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-54900 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-54900 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-54900 · Security Note
• https://bdu.fstec.ru/vul/2025-10961 · Security Note
• https://osv.dev/vulnerability/CVE-2025-54900 · Vendor Advisory
• https://twitter.com/CVEnew/status/1965509646791459211 · Twitter Post
• https://t.me/msrcreports/2142 · Telegram Post
• https://t.me/cveNotify/135302 · Telegram Post