Skip to content
VulniPulse
Sign in
Advisory severityHigh8.8Microsoft Server

High [CVE-2026-97755] Microsoft Office Excel Remote Code Execution Vulnerability

This high-severity Microsoft Server advisory covers CVE-2026-97755 affecting Microsoft SharePoint Server Subscription Edition.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-97755 Source published Source updated

VulniPulse record published

CVE-2026-97755
Affected products & platforms
Microsoft ServerSharePoint Server
Open source advisory

Summary

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

Affected product named by the advisory: Microsoft SharePoint Server Subscription Edition.

Is CVE-2026-97755 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-97755 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-97755?

Upgrade to a fixed release named by Microsoft:

  • https://aka.ms/OfficeSecurityReleases
  • publication
  • 16.0.14334.20974
  • 16.0.17932.21056
  • 16.0.20326.20190
  • 16.0.10417.20228

Confirm against the vendor advisory before you patch.

Affected versions
  • Microsoft 365 Apps for Enterprise 16.0.1 before https://aka.ms/OfficeSecurityReleases
  • Microsoft Office 365 for Mac 1.0.0 before publication
  • Microsoft Office LTSC 2021 16.0.1 before 16.0.14334.20974
  • Microsoft Office LTSC 2024 16.0.0 before 16.0.17932.21056
  • Microsoft Office LTSC for Mac 2021 16.0.1 before publication
  • Microsoft Office LTSC for Mac 2024 16.0.0 before publication
  • Microsoft SharePoint Server Subscription Edition 16.0.0 before 16.0.20326.20190
  • Office Online Server 16.0.0.0 before 16.0.10417.20228

Official advisory · high-confidence parse· fetched 24 days ago·verify at source

Fixed versions
  • https://aka.ms/OfficeSecurityReleases
  • publication
  • 16.0.14334.20974
  • 16.0.17932.21056
  • 16.0.20326.20190
  • 16.0.10417.20228

Official advisory · high-confidence parse· fetched 24 days ago·verify at source

Mitigation

Upgrade to a fixed release: https://aka.ms/OfficeSecurityReleases, publication, 16.0.14334.20974, 16.0.17932.21056, 16.0.20326.20190, 16.0.10417.20228. That is the remediation for this advisory.

The vendor advisory may list interim mitigations or workarounds not captured here. Review it before change work.

Official advisory · high-confidence parse· fetched 24 days ago·verify at source

Get an email when Microsoft SharePoint Server publishes the next one.

See Microsoft SharePoint Server's last 90 days of advisories first. Then choose one product with live alerts free for life, or a free month of real-time alerts on everything with the severity, the fixed version and the vendor's link (card needed, then US$15/month; we email you before the first charge).

Alert me about Microsoft SharePoint Server

More Microsoft Server advisories

All Microsoft Server advisories

iPhone and Android apps · New on the App Store

Monitor future Microsoft Server CVEs from your phone.

Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.

Download on the App StoreGet CVE alerts on AndroidSee app features

Discussion(0)

No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.

Sign in to join the discussion.