Security readout for executives and security teams
Plain-English summary
This is a Windows kernel-level privilege escalation issue in the Common Log File System driver. An attacker who already has low-privileged local access could potentially gain high-impact control over confidentiality, integrity, and availability on affected Windows systems. It is not a remote-entry vulnerability by itself, but it matters after initial access.
Executive priority
Treat this as a high-priority patching item, especially for systems where user compromise could become full system compromise. It is not evidenced as actively exploited in the provided sources, but local privilege escalation vulnerabilities are important in ransomware and intrusion chains.
Technical view
CVE-2024-49090 is a local, low-complexity Windows CLFS driver elevation-of-privilege vulnerability with CVSS 3.1 score 7.8. The bundle maps it to CWE-822. Microsoft lists affected Windows client and server versions. The vector requires local access and low privileges, with no user interaction.
Likely exposure
Exposure is likely wherever the listed Windows 10, Windows 11, and Windows Server versions remain unpatched. Internet exposure is not the main factor; local account access, compromised user workstations, remote desktop environments, and shared servers are more relevant.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. The CVSS vector indicates exploitation requires local access with low privileges. This is most useful to attackers after phishing, malware execution, stolen credentials, or another initial-access path.
Researcher notes
The available evidence is limited to Microsoft and CVE records. Key technical details, proof-of-concept status, and root-cause specifics beyond CWE-822 are not included. Do not assume exploit availability or broader affected products without additional vendor-confirmed data.
Mitigation direction
- Apply Microsoft security updates for CVE-2024-49090 through approved patch management.
- Prioritize shared servers, administrator workstations, VDI, and systems with many local users.
- Check Microsoft guidance for any product-specific update prerequisites or servicing requirements.
- Reduce unnecessary local logon rights on affected Windows systems.
- Monitor for unusual privilege escalation or kernel-driver related failure events.
Validation and detection
- Inventory systems against the affected Microsoft Windows versions in the source bundle.
- Confirm applicable Microsoft patches for CVE-2024-49090 are installed.
- Verify patch status through endpoint management or vulnerability scanning tools.
- Review local administrator group membership on affected systems.
- Check whether high-risk systems remain on unsupported or extended-support Windows versions.
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-822: 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 lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2024-49090 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
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C1.85.9microsoftVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/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
- Windows Common Log File System Driver Elevation of Privilege 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.
Untrusted Pointer Dereference
Untrusted Pointer Dereference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.