CVE-2021-38646CISA KEVEPSS p90.4%

CVE-2021-38646Microsoft Office Access Connectivity Engine Remote Code Execution Vulnerability

Microsoft / Office

Description

Microsoft Office Access Connectivity Engine contains an unspecified vulnerability which can allow for remote code execution.

Scoring

EPSS4.40% probability of exploitation · percentile 90.4% · 2026-08-03T12:00:16Z

CISA KEV entry

Added to KEV: 2022-03-28

(incoming)1

TypeTargetConfidenceTier
KEVEntryMicrosoft Office Access Connectivity Engine Remote Code Execution Vulnerabilitykev-cve-2021-386460%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
Microsoft Office Remote Code Execution Vulnerability
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CVE-2026-40363
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Microsoft Exchange Server Remote Code Execution Vulnerability
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CVE-2025-21362
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Microsoft Office Memory Corruption Vulnerability
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CVE-2026-40358
Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.