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Δ / VULNERABILITY RECORD

CVE-2026-26144.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSHIGH / 7.5No severity score in this snapshot.
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSMicrosoft vendor recordModified Mar 10, 2026

Disclosure summary

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.

Source-reported weakness categories

CWE-79

Source-specific records & product guidance

Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.

Microsoft Security Updates (CVRF) · 2026-Mar

Open original source · Updated Mar 10, 2026

Microsoft Excel Information Disclosure Vulnerability

Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.

Microsoft maximum product score: 7.5

VendorProduct / associationVersion / bounds
Microsoft update guideMicrosoft 365 Apps for Enterprise for 64-bit Systems (MSRC status code 3)
Microsoft update guideMicrosoft 365 Apps for Enterprise for 32-bit Systems (MSRC status code 3)

Vendor remediation references

  • Click to Run · build https://aka.ms/OfficeSecurityReleases · product IDs 11763, 11762
  • Vendor guidance · product IDs 11763, 11762

Original records & references

PUBLISHED 2026-03-10T03:00:00-04:00
MODIFIED 2026-03-10T03:00:00-04:00
INGESTED 2026-10-08T12:45:10-04:00