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2026-10-17 21:56 CEST · Intelligence refreshed (Europe/Stockholm)

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Latest synchronized CVE
CVSS 4.3 Published 2026-10-17 21:00 CEST
Vendor
Affected products
1 affected products/devices 1 software
General vulnerability query Recent High & critical CVEs

Query the vulnerability time window. Default 7 days; narrow to the last 24 hours or expand to 14 or 30 days when needed.

CVSS 8.8/10 High severity

First published: 13 October 2026, 21:01 CEST · Last modified: 17 October 2026, 01:26 CEST

CVE lookup — correlated security and lifecycle intelligence

· 9 sources correlated

Important — plan remediation

Microsoft Office Excel Remote Code Execution Vulnerability

SeverityCVSS 8.8High · Remote / network
ExploitationNone reportedEPSS 0.8% chance in 30 days
Affected products20 products20 softwareSupply chain1 downstream productacross 1 vendor

Why this rating

  • It can be exploited remotely over the network.
  • Weakness type: Use after free (CWE-416).
  • Rated high (CVSS 8.8); no exploitation is reported in current sources.
  • 1 product from other vendors bundle or depend on the affected component.

What to do

  1. Install Microsoft update KB108860, KB5002928 on affected Windows/Microsoft systems.
  2. Check your inventory against the 20 affected products — start with internet-facing systems.
  3. For products that bundle the component, follow each vendor's own advisory for its fixed release.
Vendor
Affected products
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+7 more

Affected products (examples)

Click to open the full list
Microsoft 365 Apps for EnterpriseMicrosoft Office 365 for MacMicrosoft Office LTSC 2021Microsoft Office LTSC 2024Microsoft Office LTSC for Mac 2021Microsoft Office LTSC for Mac 2024All 20 →

What the vulnerability is

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

Detailed evidence Everything below supports the summary above. Open only what you need.

Direct connected intelligence KBs, campaigns & Oracle
Connected intelligence Direct relationships for
Matched intelligence coverage 9 sources
Microsoft KB EUVD Vulnrichment GHSA EPSS CWE CVE Nvd Applicability Affected Products
Supply-chain / downstream affected products 1 downstream

This view separates downstream/bundled/advisory-derived exposure from direct product assertions. It is correlation evidence, not proof that every listed deployment is exploitable; vendor/version/configuration validation still applies.

1downstream products
1vendors / ecosystems

Representative downstream relationships

Microsoft Office Online Server Software · Product-associated assertion · NVD/CVE catalog · supporting vendor/advisory evidence

Complete downstream evidence

Every downstream product relationship Scantide currently correlates for this CVE is listed below. Expand a category to inspect all products and their provenance.

Software · 1 relationship
Microsoft Office Online Server Microsoft
Vendor/advisory-supported Product-associated Assertion Source: NVD/CVE catalog high confidence

Top downstream vendor ecosystems

Open complete affected inventory Open downstream vendor relationships
Cross-source correlations 8 matched lanes

Direct intelligence-source relationships

Direct intelligence-source lanes: every lane below has direct evidence for

in that Scantide intelligence collection. Lanes share the CVE as their join key; their presence together does not imply that one source explicitly referenced another source's record.

8 matched source lanes
Microsoft KB / MSRC · 3 ENISA EUVD CISA Vulnrichment GitHub Advisory EPSS MITRE CWE CVE / NVD catalog Affected products/devices · 20
Downstream affected vendors 1 vendors

Affected vendor/product relationships

These vendors are derived from affected product/device evidence tied to this CVE. This is intentionally separate from the direct intelligence-source lanes above: a vendor can have affected products without Scantide having a vendor-specific advisory or Microsoft KB record for the CVE.

 1 affected vendors represented

Affected software, operating systems, hardware and devices 20

Deduplicated across Scantide's structured CVE, NVD applicability, CSAF, vendor advisory, campaign and downstream product evidence. Taxonomy IDs and evidence-only identifiers are excluded from the asset count. Counts represent relationships Scantide can currently prove, not the theoretical maximum downstream ecosystem.

20Software / applications
NVD/CVE catalog 7CISA Vulnrichment 16Microsoft Kb 1NVD applicability graph 4
Expand all affected categories (20) How can this affect my environment?
Software (20 — click to show all)
Vendor: Microsoft
Software Affected range: All listed or unspecified versions Product-associated Assertion
Primary: NVD/CVE catalogCorroborated: CISA Vulnrichmenthigh confidence
Vendor: Microsoft
Software Affected range: All listed or unspecified versions Product-associated Assertion
Primary: NVD/CVE catalogCorroborated: CISA Vulnrichmenthigh confidence
Vendor: Microsoft
Software Affected range: All listed or unspecified versions Product-associated Assertion
Primary: NVD/CVE catalogCorroborated: CISA Vulnrichmenthigh confidence
Vendor: Microsoft
Software Affected range: All listed or unspecified versions Product-associated Assertion
Primary: NVD/CVE catalogCorroborated: CISA Vulnrichmenthigh confidence
Vendor: Microsoft
Software Affected range: All listed or unspecified versions Product-associated Assertion
Primary: NVD/CVE catalogCorroborated: CISA Vulnrichmenthigh confidence
Vendor: Microsoft
Software Affected range: All listed or unspecified versions Product-associated Assertion
Primary: NVD/CVE catalogCorroborated: CISA Vulnrichmenthigh confidence
Vendor: Microsoft
Software Affected range: All listed or unspecified versions Product-associated Assertion
Primary: NVD/CVE catalogCorroborated: CISA VulnrichmentCorroborated: Microsoft Kbhigh confidence
Vendor: Microsoft
Software Affected range: version 16.0.1 — before https://aka.ms/OfficeSecurityReleases Product-associated Assertion
Primary: CISA Vulnrichment — structured affected recordhigh confidence
Vendor: Microsoft
Software Affected range: All listed or unspecified versions Product-associated Assertion
Primary: CISA Vulnrichmentmedium-high confidence
Vendor: Not identified in correlated evidence
Software Affected range: All listed or unspecified versions Product-associated Assertion
Primary: CISA Vulnrichmentmedium-high confidence
Vendor: Microsoft
Software Affected range: version 1.0.0 — before 16.114.26101123 Product-associated Assertion
Primary: CISA Vulnrichment — structured affected recordhigh confidence
Vendor: Microsoft
Software Affected range: version 16.0.1 — before 16.0.14334.20974 Product-associated Assertion
Primary: CISA Vulnrichment — structured affected recordhigh confidence
Vendor: Microsoft
Software Affected range: version 16.0.0 — before 16.0.17932.21056 Product-associated Assertion
Primary: CISA Vulnrichment — structured affected recordhigh confidence
Vendor: Microsoft
Software Affected range: version 16.0.1 — before 16.114.26101123 Product-associated Assertion
Primary: CISA Vulnrichment — structured affected recordhigh confidence
Vendor: Microsoft
Software Affected range: version 16.0.0 — before 16.114.26101123 Product-associated Assertion
Primary: CISA Vulnrichment — structured affected recordhigh confidence
Vendor: Microsoft
Software Affected range: version 16.0.0.0 — before 16.0.10417.20228 Product-associated Assertion
Primary: CISA Vulnrichment — structured affected recordhigh confidence
Vendor: microsoft
Software Affected range: hardware - — platform macos Product-associated Assertion
Primary: NVD applicability graph — official CPE Match expansionhigh confidence
Vendor: microsoft
Software Affected range: before 16.0.10417.20228 — hardware * — platform * Product-associated Assertion
Primary: NVD applicability graph — official CPE Match expansionhigh confidence
Vendor: microsoft
Software Affected range: hardware x64 — platform * Product-associated Assertion
Primary: NVD applicability graph — official CPE Match expansionhigh confidence
Vendor: microsoft
Software Affected range: hardware x64 — platform - Product-associated Assertion
Primary: NVD applicability graph — official CPE Match expansionhigh confidence
What each source says 3
European vulnerability intelligence: ENISA EUVD cross-reference: EUVD-2026-100322.
Exploit probability: Estimated exploitation probability 0.79% — percentile 55.4%.
Vulnerability summary: Microsoft Office Excel Remote Code Execution Vulnerability
GitHub package advisories 1
Microsoft security update correlation 3

Microsoft CVE ↔ KB relationships from MSRC CVRF and Microsoft Support. Multiple rows can exist for one KB when product/build applicability or support-page evidence differs.

KB108860
Office Online Server MSRC CVRF
Open Microsoft update guidance
KB5002928
Office Online Server MSRC CVRF
Open Microsoft update guidance
KB5002928
Office Online Server MSRC CVRF
Open Microsoft update guidance
Evidence coverage

Correlated from multiple vulnerability, exploitation, advisory, package and affected-product intelligence collections.

Technical query coverage · 16 collections queried · 1 CVEs correlated
2026-10-17 21:56 CESTIntelligence refreshed
1unique CVEs queried and enriched
1unique CVEs correlated to this result
1unique advisories correlated
16intelligence collections queried
Affected-product scope: The product/device count is the deduplicated set Scantide can prove from its currently ingested structured records and advisory text. It is not a claim that only those products were affected; component vulnerabilities such as Log4Shell can have a much larger downstream ecosystem. Advisory and vendor references are kept clickable so additional downstream exposure can be followed to the authoritative source.
Coverage note: Scantide correlates multiple public and locally indexed intelligence sources, but no dataset or matching process is complete. Results may omit software, dependencies, affected versions or advisories, and related records do not by themselves prove that a specific installation is vulnerable. Confirm important findings against vendor guidance and the installed product and version.