CVE-2026-97742: Microsoft Office Excel Remote Code Execution Vulnerability

Published Oct 13, 2026
·
Updated

Microsoft Office Excel Remote Code Execution Vulnerability

Other sources

Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

— Microsoft

Affected Software

19 affected componentsFixes available
Microsoft Microsoft Office Excel
Microsoft Office LTSC for Mac 2021<16.114.26101123
16.114.26101123
Microsoft Office LTSC for Mac 2024<16.114.26101123
16.114.26101123
Microsoft Office 365 for Mac<16.114.26101123
16.114.26101123
Microsoft Office Online Server<16.0.10417.20228
16.0.10417.20228
Microsoft 365 Apps
Microsoft 365 Apps
Microsoft Microsoft 365 Macos
Microsoft Office 2021
Microsoft Office 2021
Microsoft Office 2021 Macos
Microsoft Office 2024
Microsoft Office 2024
Microsoft Office 2024 Macos
Microsoft Office Online Server<16.0.10417.20228
Microsoft Office LTSC 2021<16.0.14334.20974
16.0.14334.20974
Microsoft Office LTSC 2024<16.0.17932.21056
16.0.17932.21056
Microsoft Office LTSC 2024<16.0.17932.21056
16.0.17932.21056
Microsoft Office LTSC 2021<16.0.14334.20974
16.0.14334.20974

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 16.114.26101123
  2. Upgrade

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

    Fixed in 16.0.10417.20228Patch KB5002928
  3. Upgrade

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

    Fixed in 16.0.14334.20974
  4. Upgrade

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

    Fixed in 16.0.17932.21056

Event History

Oct 13, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·07:01 PM
Data Sourced
via MITRE·07:01 PM
DescriptionSeverity
Data Sourced
via NVD·07:22 PM
RemedyDescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What does an attacker need to exploit this issue?

The attack vector is network-based, requires no privileges, and has low attack complexity. User interaction is required, so exploitation depends on a user interacting with attacker-supplied content or a remote attack delivered to the user.

2

What is the potential impact if exploitation succeeds?

Successful exploitation can allow an unauthorized attacker to execute code. The CVSS vector indicates high impact to confidentiality, integrity, and availability.

3

Is there evidence that this vulnerability is being exploited in the wild?

The supplied exploit-code maturity value is E:U, meaning exploitation status is unknown from the available data.

Contact

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