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Vulnerabilities

Vulnerability · CVE-2025-59235

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

Published Oct 14, 2025 · catalog updated Feb 22, 2026 · Microsoft Microsoft SharePoint Server 2019

Last checked Nov 2, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-59235. EPSS is 0.65%. Act only if a listed version of Microsoft Microsoft SharePoint Server 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
High7.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.65%
Remediation
Version ranges on file
Affected products
cpe microsoft/365 apps · cpe microsoft/access · cpe microsoft/excel · cpe microsoft/office online server · vendor Microsoft Microsoft SharePoint Server 2019 16.0.0 <16.0.10417.20059

Out-of-bounds read 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.

  • cpe microsoft/365 appsversion unspecified
  • cpe microsoft/access2016
  • cpe microsoft/excel2016
  • cpe microsoft/office online server< 16.0.10417.20059
  • vendor Microsoft Microsoft SharePoint Server 2019 16.0.0 <16.0.10417.2005916.0.0 <16.0.10417.20059

How to fix CVE-2025-59235

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-2025-59235. EPSS is 0.65%. Act only if a listed version of Microsoft Microsoft SharePoint Server 2019 is installed.

Which versions are affected?

Compare what you have installed with microsoft/office online server < 16.0.10417.20059; Microsoft Microsoft SharePoint Server 2019 16.0.0 <16.0.10417.20059 16.0.0 <16.0.10417.20059. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-125: Out-of-bounds Read. EPSS 0.65%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Microsoft SharePoint security

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. Oct 14, 2025 · EUVD

    Detected

    Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

  2. Feb 22, 2026 · EUVD

    Updated

    Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

Sources

  • CVE.orgVulnerability recordCVE-2025-59235

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-59235

    30-day exploitation probability 0.65%

    first.org
  • EUVDVulnerability recordEUVD-2025-34382

    Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

    euvd.enisa.europa.eu
  • Monitored products — criticalVendor advisoryCVE-2025-59235

    Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Nov 1, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • Monitored products — criticalNov 2, 2026
  • CVE.orgOct 23, 2026
  • FIRST EPSSOct 23, 2026
  • EUVDOct 23, 2026