CVE-2025-59240 | Microsoft Excel Information Disclosure Vulnerability

Exposure of sensitive information to an unauthorized actor in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

Published: 2025-11-11 Last update: 2025-11-17 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2025-59240 is rated Low Risk (26.1/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.04%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-59240

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-09 0.06% 0.04% -0.03%
2 2026-01-27 0.04% 0.06% +0.03%
3 2025-12-02 0.04%

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-59240

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
1.8 3.6 [email protected]

Weakness enumeration for CVE-2025-59240

Affected software / configurations for CVE-2025-59240

Vendor Product Version Raw CPE
microsoft 365_apps cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*
microsoft excel 2016 cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:x64:*
microsoft excel 2016 cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:x86:*
microsoft office 2019 cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x64:*
microsoft office 2019 cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x86:*
microsoft office_long_term_servicing_channel 2021 cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:x64:*
microsoft office_long_term_servicing_channel 2021 cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:x86:*
microsoft office_long_term_servicing_channel 2024 cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:-:x64:*
microsoft office_long_term_servicing_channel 2024 cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:-:x86:*

References for CVE-2025-59240

cvelogic Threat Intelligence