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Vulnerabilities

Vulnerability · CVE-2025-59240

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

Published Nov 11, 2025 · catalog updated Feb 13, 2026 · Microsoft Microsoft Office 2019

Last checked Oct 28, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-59240. EPSS is 0.64%. Act only if a listed version of Microsoft Microsoft Office 2019 is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium5.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.64%
Remediation
Version ranges on file
Affected products
vendor Microsoft Microsoft Office 2019 19.0.0 <https://aka.ms/OfficeSecurityReleases

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

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Microsoft Microsoft Office 2019 19.0.0 <https://aka.ms/OfficeSecurityReleases19.0.0 <https://aka.ms/OfficeSecurityReleases

How to fix CVE-2025-59240

  • Upgrade

    CVE-2025-59240 lists a fix boundary at https://aka.ms/OfficeSecurityReleases. Compare the installed build with that boundary before you change production.

  • Version check

    Seen in 19.0.0 <https://aka.ms/OfficeSecurityReleases

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-59240. EPSS is 0.64%. Act only if a listed version of Microsoft Microsoft Office 2019 is installed.

Which versions are affected?

Compare what you have installed with Microsoft Microsoft Office 2019 19.0.0 <https://aka.ms/OfficeSecurityReleases 19.0.0 <https://aka.ms/OfficeSecurityReleases. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.64%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Nov 11, 2025 · EUVD

    Detected

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

  2. Feb 13, 2026 · EUVD

    Updated

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

Sources

  • CVE.orgVulnerability recordCVE-2025-59240

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-93421

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

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 28, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgOct 24, 2026
  • EUVDOct 24, 2026