CVE-2026-72977: Microsoft Office PowerPoint Information Disclosure Vulnerability

Published Sep 8, 2026
·
Updated

Microsoft Office PowerPoint Information Disclosure Vulnerability

Other sources

Out-of-bounds read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.

Microsoft

Affected Software

13 affected componentsFixes available
Microsoft Office 365 for Mac
Microsoft Office LTSC for Mac 2024
Microsoft PowerPoint 2016<16.0.5569.1000
16.0.5569.1000
Microsoft PowerPoint 2016<16.0.5569.1000
16.0.5569.1000
Microsoft Office LTSC 2024 for 32-bit editions<16.0.17932.20976
16.0.17932.20976
Microsoft Office LTSC for Mac 2021
Microsoft Office LTSC 2021 for 32-bit editions<16.0.14334.20906
16.0.14334.20906
Microsoft Office LTSC 2024 for 64-bit editions<16.0.17932.20976
16.0.17932.20976
Microsoft 365 Apps for Enterprise<16.0.20326.20138
16.0.20326.20138
Microsoft Office LTSC 2021 for 64-bit editions<16.0.14334.20906
16.0.14334.20906
Microsoft Office 2019 for 32-bit editions<16.0.10417.20207
16.0.10417.20207
Microsoft Office 2019 for 64-bit editions<16.0.10417.20207
16.0.10417.20207
Microsoft 365 Apps for Enterprise<16.0.20326.20138
16.0.20326.20138

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 16.0.5569.1000Patch KB5002920
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 16.0.17932.20976
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 16.0.14334.20906
  4. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 16.0.20326.20138
  5. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 16.0.10417.20207

Event History

Sep 8, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
CVE Published
via MITRE·05:17 PM
Data Sourced
via MITRE·05:17 PM
DescriptionSeverity

Frequently Asked Questions

1

Which Office deployments should be prioritized for review?

Review deployments of PowerPoint 2016, Microsoft 365 Apps for Enterprise, Office 365 for Mac, Office LTSC for Mac 2021 and 2024, and Office LTSC 2021 and 2024 for 32-bit editions. Office LTSC 2024 for 64-bit editions is also listed as affected.

2

What attacker interaction is indicated by the available severity data?

The severity vector indicates network attack access, low attack complexity, no privileges required, and required user interaction. The reported impact is disclosure of information, with no indicated integrity or availability impact.

Contact

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