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Deserialization of untrusted data in Microsoft Office Excel allows an unauthorized attacker to execute code with a physical attack.
No KB update is listed in the collected MSRC record. Check the MSRC advisory for product releases and other remedies.
Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.
Cite this versionUp to 100 recent field edits are shown; older edits may be outside retention.
No retained field changes for this selection.
Explore global source statements, affected packages and advisory history for CVE-2026-124229. The catalog has a separate collection scope from Microsoft release records.
CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.
No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.
Deserialization of untrusted data in Microsoft Office Excel allows an unauthorized attacker to execute code with a physical attack.
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.
CVSS 3.1 · 6.6 CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C