CVE-2026-97740 | BDVDB-2026-388016 Detail

MicrosoftMicrosoft 365 Apps for Enterprise

Description#

Exposure of sensitive system information to an unauthorized control sphere in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact none, availability impact none. Attack vector: network.

Weaknesses#

CWE-497 Exposure of Sensitive System Information to an Unauthorized Control Sphere

References#

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-97740

Exploit#

No public exploit known

History#

Version 12026-10-13Record published in the CVE List.
Version 22026-10-31Most recent update recorded in the CVE List.

Published

Published: 2026-10-13
Last modified: 2026-10-31

Vendor information

Vendor: Microsoft
Product: Microsoft 365 Apps for Enterprise

All Microsoft vulnerabilities

Score

6.5 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 58.8.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 16.0.1 and < https://aka.ms/OfficeSecurityReleases
Fixed
https://aka.ms/OfficeSecurityReleases

Scoring System

CVSS v4.0

Not available

CVSS v3.1

6.5 Medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity	None
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).