Security readout for executives and security teams
Plain-English summary
A local attacker with an existing low-privilege account could exploit a Windows kernel memory flaw to gain elevated privileges. Successful exploitation could provide broad control over the affected device, including access to sensitive information and the ability to alter or disrupt systems.
Executive priority
Treat this as a high-priority patching issue, particularly on shared endpoints, exposed servers, and systems where initial compromise would threaten sensitive operations. It is not described as remotely exploitable, but it could turn limited access into extensive device control.
Technical view
CVE-2024-30086 is a Win32 Kernel Subsystem elevation-of-privilege vulnerability classified as CWE-416, use-after-free. It has CVSS 3.1 score 7.8 and requires local access with low privileges, low complexity, and no user interaction. Successful exploitation can cause high confidentiality, integrity, and availability impact.
Likely exposure
Exposure includes the listed Windows 10 and Windows 11 releases and Windows Server 2012 through 2022 variants, including specified Server Core installations. Organizations should match deployed editions and builds against Microsoft’s advisory; the bundle does not provide fixed build or KB details.
Exploitation context
The supplied record does not indicate CISA KEV inclusion or provide evidence of active exploitation. Exploitation requires an attacker to already have local low-privilege access, making this especially relevant after credential compromise, malware execution, or another initial-access event.
Researcher notes
The source bundle identifies a kernel use-after-free but does not describe the vulnerable function, triggering conditions, affected component internals, proof-of-concept availability, or fixed builds. Consult Microsoft’s advisory for authoritative remediation mappings. No conclusion about real-world exploitation should be drawn solely from absence from KEV.
Mitigation direction
- Review Microsoft’s CVE advisory for applicable security updates and installation requirements.
- Apply the relevant Microsoft security updates to affected supported Windows systems.
- Prioritize endpoints and servers accessible to untrusted or lower-privileged users.
- Restrict unnecessary local accounts and administrative access while remediation is underway.
- Use endpoint monitoring to detect suspicious privilege changes and kernel-related failures.
Validation and detection
- Inventory Windows editions, versions, build numbers, and Server Core installations.
- Compare each inventoried system with Microsoft’s affected and fixed-version guidance.
- Confirm applicable security updates installed successfully and survived required restarts.
- Verify vulnerability scanners recognize systems as remediated after patching.
- Review endpoint telemetry for unexplained privilege escalation or abnormal kernel crashes.
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-416: 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-2024-30086 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 Win32 Kernel Subsystem 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.
Use After Free
Use After Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.