Security readout for executives and security teams
Plain-English summary
A flaw in Microsoft ActiveX Data Objects can allow remote code execution when a user interacts with malicious content. Successful exploitation could compromise confidentiality, integrity, and availability. The supplied CVSS score is 8.8, making affected Windows endpoints and servers a high-priority patching concern.
Executive priority
Treat this as a high-priority remediation item because compromise could provide full code execution impact. Accelerate assessment and patching, especially for high-value systems, while recognizing that the supplied sources do not confirm active exploitation.
Technical view
CVE-2024-21349 is a remote code execution vulnerability associated with CWE-122, a heap-based buffer overflow. Its CVSS vector indicates network reachability, low attack complexity, no required privileges, and required user interaction. Successful exploitation can cause high confidentiality, integrity, and availability impact.
Likely exposure
The supplied affected list includes specified builds of Windows 10, Windows 11, and Windows Server 2008 through 2016, including some Server Core installations. Exposure depends on the exact operating-system build and whether Microsoft's applicable security update is installed.
Exploitation context
The attack requires user interaction but no prior privileges, according to the CVSS vector. The supplied evidence does not establish active exploitation, and the CVE is not identified as KEV in the bundle. Exploit maturity is marked unknown.
Researcher notes
The bundle provides CVSS 3.1 score 8.8 and CWE-122 but no detailed vulnerable function, proof of concept, indicators, or KB mappings. Validate affected builds and remediation directly against Microsoft's advisory. Avoid inferring exploitability beyond the documented user-interaction requirement and impact metrics.
Mitigation direction
- Apply Microsoft's applicable security update after normal testing and change control.
- Prioritize affected internet-facing, user-facing, and high-value Windows systems.
- Consult Microsoft guidance for exact build-specific updates and prerequisites.
- Use existing endpoint protections to reduce delivery and execution risk while patching.
Validation and detection
- Inventory Windows editions, versions, and build numbers against the supplied affected list.
- Verify the applicable Microsoft security update is installed successfully on each exposed system.
- Confirm update compliance through vulnerability scanning and endpoint-management records.
- Review security telemetry for suspicious activity involving vulnerable systems and unexpected code execution.
Public sources used
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-122: 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-2024-21349 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 ActiveX Data Objects 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.
Heap-based Buffer Overflow
Heap-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.