Security readout for executives and security teams
Plain-English summary
CVE-2021-29337 is a local privilege-risk issue in MSI Dragon Center 2.0.104.0. A low-privileged Windows user could use the MODAPI.sys driver to access kernel memory and potentially gain higher privileges. This matters most on shared workstations, engineering systems, and endpoints where MSI Dragon Center is installed.
Executive priority
Treat this as a targeted endpoint hardening issue, not an internet-facing emergency. Prioritize finding installations, removing unnecessary copies, and checking MSI guidance because the vulnerability could convert ordinary local access into deeper system control.
Technical view
The issue is in MODAPI.sys, shipped with MSI Dragon Center 2.0.104.0. The CVE states that a crafted IOCTL 0x9c406104 call exposes MmMapIoSpace-style physical memory mapping, allowing low-privileged access to kernel memory and possible privilege escalation. No CVSS score, CWE, vendor advisory, or patch details are included in the provided sources.
Likely exposure
Exposure appears limited to Windows endpoints running MSI Dragon Center 2.0.104.0 with MODAPI.sys present. The source bundle does not identify other affected versions, products, or CPEs, so broader exposure should not be assumed without inventory evidence.
Exploitation context
The CVE is not listed as CISA KEV in the source bundle, and no cited source states active exploitation. The issue requires local low-privileged access, so it is most relevant after phishing, malware execution, insider access, or compromise of a standard user account.
Researcher notes
The strongest technical claim in the sources is the exposed IOCTL path to MmMapIoSpace behavior. Evidence is thin: no CVSS, CWE, affected CPEs, patch statement, or exploitation confirmation are provided. Avoid expanding affected scope beyond MSI Dragon Center 2.0.104.0 without vendor or testing evidence.
Mitigation direction
- Inventory endpoints for MSI Dragon Center 2.0.104.0 and MODAPI.sys.
- Check MSI guidance for fixed versions or removal instructions.
- Remove or disable MSI Dragon Center where it is not business-required.
- Restrict local user access on exposed shared or high-value systems.
- Monitor for unexpected loading or use of MODAPI.sys.
Validation and detection
- Confirm whether MSI Dragon Center 2.0.104.0 is installed.
- Confirm whether MODAPI.sys exists and loads on endpoints.
- Review endpoint telemetry for unusual low-privileged interaction with the driver.
- Check vendor and asset-management records for available updates.
- Prioritize validation on shared workstations and privileged-user devices.
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.
CVE-2021-29337 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/rjt-gupta/CVE-2021-29337CVE reference · x_refsource_MISC
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.