Security readout for executives and security teams
Plain-English summary
A flaw in Microsoft’s WDAC OLE DB provider for SQL Server could let a remote attacker run code after user interaction. Successful exploitation could expose data, alter systems, or interrupt operations. The supplied assessment rates it high severity at CVSS 8.8.
Executive priority
Treat as a high-priority patching item because exploitation could provide full code execution with substantial business impact. Prioritize critical systems and environments where users or applications interact with SQL Server through the affected provider. Evidence supplied does not justify declaring an active emergency.
Technical view
CVE-2024-21420 is a network-reachable, low-complexity remote code execution vulnerability classified as CWE-190 integer overflow. No privileges are required, but user interaction is required. Successful exploitation may compromise confidentiality, integrity, and availability without changing security scope.
Likely exposure
Exposure applies to the listed Windows 10, Windows 11, and Windows Server releases where the vulnerable WDAC OLE DB provider is present. The bundle does not establish whether every installation enables or uses the affected component.
Exploitation context
The supplied bundle does not report a CISA KEV listing or provide evidence of active exploitation. The CVSS vector indicates remote reachability, low attack complexity, no required privileges, and required user interaction. No exploit procedure or observed campaign details are provided.
Researcher notes
The source bundle identifies an integer overflow but does not describe the vulnerable operation, triggering input, execution context, or reliable detection indicators. Validation should therefore rely on affected-version and security-update status. Claims about public exploit availability or exploitation in the wild cannot be established from these sources.
Mitigation direction
- Identify systems running the Windows releases listed in the Microsoft advisory.
- Apply the applicable Microsoft security update using approved patch-management procedures.
- Prioritize exposed, user-facing, and business-critical Windows systems.
- Consult Microsoft guidance for release-specific prerequisites or compensating controls.
Validation and detection
- Confirm installed Windows versions against Microsoft’s affected-product list.
- Verify the applicable Microsoft security update is installed successfully.
- Re-scan patched systems using current authenticated vulnerability checks.
- Monitor endpoint and application telemetry for unexpected OLE DB-related process activity.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-190: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2024-21420 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C2.85.9microsoftVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- Microsoft WDAC OLE DB provider for SQL Server Remote Code Execution VulnerabilityCVE reference, microsoft · vendor-advisory, patch
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.