Security readout for executives and security teams
Plain-English summary
This is a Windows privilege escalation flaw in the Common Log File System driver. An attacker who already has low-level local access could potentially gain high-level control over an affected Windows system. It is not described as remotely exploitable in the source data, but it can materially increase impact after initial compromise.
Executive priority
Prioritize normal high-severity Windows patching. This is not evidenced as actively exploited in the supplied sources, but it can turn a limited local foothold into broader system control on unpatched machines.
Technical view
CVE-2022-30220 is a local elevation-of-privilege vulnerability in the Windows Common Log File System driver. The CVSS 3.1 score is 7.8, with local attack vector, low complexity, low privileges required, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is likely on unpatched affected Windows clients and servers listed by Microsoft, including Windows 7, 8.1, Windows 10, Windows 11 21H2, Windows Server 2008, 2016, 2019, 2022, and Server Core variants.
Exploitation context
The supplied data does not show CISA KEV listing or active exploitation. CVSS marks exploit maturity as unproven. Treat this as a post-compromise escalation risk: an attacker needs local low-privileged access before this vulnerability becomes useful.
Researcher notes
The source bundle provides CVSS details and affected products but no root-cause detail, exploit narrative, or compensating controls. Avoid assuming remote exploitability. Validation should focus on OS version, patch state, and whether the host allows untrusted local code execution.
Mitigation direction
- Review Microsoft guidance for CVE-2022-30220 in the MSRC Update Guide.
- Apply the relevant Microsoft security updates for affected Windows versions.
- Prioritize internet-facing servers, shared workstations, and systems with many local users.
- Retire or isolate unsupported Windows systems where updates are unavailable.
- Monitor Microsoft advisory updates for revised affected products or remediation details.
Validation and detection
- Inventory Windows versions against the affected product list in the advisory.
- Verify installed Microsoft security updates for CVE-2022-30220 on each affected system.
- Confirm Server Core installations are included in patch compliance checks.
- Review vulnerability scanner results for stale detections after patching.
- Check CISA KEV separately if exploitation status must be current.
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.
Privilege 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-2022-30220 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.
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:C1.85.9Primary CVE scoreVulnerability 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
Source materials
- CVE List V5 sourceCVE List V5
- Windows Common Log File System Driver Elevation of Privilege VulnerabilityCVE reference · vendor-advisory
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.