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

criticalknown exploitedCVE-2021-38646
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Microsoft Office Access Connectivity Engine contains an unspecified vulnerability which can allow for remote code execution.

CSIRTS triage

vendor: Microsoftproduct: Office Access Connectivity EngineRemote code execution
What
An unspecified vulnerability in Microsoft Office Access Connectivity Engine can allow for remote code execution.
Who is affected
Users of Microsoft Office Access Connectivity Engine.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Update Microsoft Office to the latest version.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-03-28
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2021-38646

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2021-38646coverage & exploitation statusNVD · CVE.org

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