Microsoft Office Access
CVE-2021-42293 — Microsoft Jet Red Database Engine and Access Connectivity Engine Elevation of Privilege Vulnerability
Executive Summary
None
Overview
6.5
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
None
INTEGRITY
None
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 5.7
EPSS Score
0.02827
probability of exploitation in the next 30 days
0.85356 percentile - updated 2026-08-14
View on FIRST.org
Affected Products
11 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Microsoft 365 Apps for Enterprise for 32-bit Systems | Click to Run (Security Update) |
Important | Elevation of Privilege | No |
| Microsoft 365 Apps for Enterprise for 64-bit Systems | Click to Run (Security Update) |
Important | Elevation of Privilege | No |
| Microsoft Office 2013 RT Service Pack 1 | 5002104 (Security Update) |
Important | Elevation of Privilege | Maybe |
| Microsoft Office 2013 Service Pack 1 (32-bit editions) | 5002104 (Security Update) |
Important | Elevation of Privilege | Maybe |
| Microsoft Office 2013 Service Pack 1 (64-bit editions) | 5002104 (Security Update) |
Important | Elevation of Privilege | Maybe |
| Microsoft Office 2016 (32-bit edition) | 5002099 (Security Update) |
Important | Elevation of Privilege | Maybe |
| Microsoft Office 2016 (64-bit edition) | 5002099 (Security Update) |
Important | Elevation of Privilege | Maybe |
| Microsoft Office 2019 for 32-bit editions | Click to Run (Security Update) |
Important | Elevation of Privilege | No |
| Microsoft Office 2019 for 64-bit editions | Click to Run (Security Update) |
Important | Elevation of Privilege | No |
| Microsoft Office LTSC 2021 for 32-bit editions | Click to Run (Security Update) |
Important | Elevation of Privilege | No |
| Microsoft Office LTSC 2021 for 64-bit editions | Click to Run (Security Update) |
Important | Elevation of Privilege | No |
Patches
3 patches
| Article | Type | Restart |
|---|---|---|
Click to Run |
Security Update | No |
5002104 |
Security Update | Maybe |
5002099 |
Security Update | Maybe |
Exploits & PoC
No public exploit or PoC has been linked for this CVE yet. When available, references are sourced from public repositories and may be unverified or non-functional — review carefully before use.
Detection Rules
No public Sigma or Nuclei detection rule has been mapped to this CVE yet. Coverage is concentrated on exploited / high-profile vulnerabilities; check SigmaHQ for updates.
Acknowledgments
References
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