CVE-2026-81950

CVE CVE-2026-81950EUVD EUVD-2026-73881Published 2026-09-08T17:19:08.000ZLast changed 2026-09-15T22:44:09.000ZCVSS 7.8

What the advisory describes

Double free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

• Microsoft — Microsoft 365 Apps for Enterprise 16.0.1 <16.0.20326.20138
• Microsoft — Microsoft Excel 2016 16.0.0.0 <16.0.5569.1003
• Microsoft — Microsoft Office 2016 16.0.0 <16.0.5569.1003
• Microsoft — Microsoft Office 2019 19.0.0 <16.0.10417.20207
• Microsoft — Microsoft Office 365 for Mac -
• Microsoft — Microsoft Office LTSC 2021 16.0.1 <16.0.14334.20906
• Microsoft — Microsoft Office LTSC 2024 16.0.0 <16.0.17932.20976
• Microsoft — Microsoft Office LTSC for Mac 2021 -
• Microsoft — Microsoft Office LTSC for Mac 2024 -

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

• Microsoft — Excel
• Microsoft — Microsoft 365 Apps for Enterprise
• Microsoft — Microsoft Office LTSC 2021
• Microsoft — Microsoft Office LTSC 2024
• Microsoft — Microsoft Office LTSC for Mac 2021
• Microsoft — Microsoft Office LTSC for Mac 2024
• Microsoft — Office

Patchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.