Security readout for executives and security teams
Plain-English summary
This Linux kernel flaw is a use-after-free condition in the MCP2221 HID driver. It can occur when a supported USB device is plugged and unplugged before delayed initialization work finishes. The sources do not provide a CVSS score, active exploitation evidence, or a detailed impact statement.
Executive priority
Handle through normal kernel vulnerability maintenance unless the organization has exposed workstations, labs, or embedded systems using MCP2221 USB devices. Urgency is constrained by missing severity data and no cited exploitation evidence.
Technical view
The mcp-2221 HID driver could free its device structure while delayed work was still pending. The kernel fix cancels the delayed work synchronously so it cannot run or requeue after the structure becomes unavailable. The CVE data identifies Linux kernel 6.2-series exposure and links stable kernel fixes.
Likely exposure
Exposure appears limited to Linux systems running affected kernels with the MCP2221 HID driver and relevant USB device attach/removal activity. The bundle does not indicate remote network exposure or broad application-level attack surface.
Exploitation context
No KEV listing is present, and the provided sources do not claim active exploitation. The described trigger involves device plug/unplug timing before initialization work completes. Evidence is insufficient to assess practical exploitability or privilege impact.
Researcher notes
The useful evidence is the kernel commit rationale: delayed work can outlive the device-managed structure during rapid plug/unplug. Validation should focus on driver presence, kernel lineage, and whether vendor kernels backported the cancel_delayed_work_sync fix.
Mitigation direction
- Apply Linux stable kernel updates that include the referenced fixes.
- Check distribution advisories for package-specific corrected kernel versions.
- Limit untrusted USB peripheral access on potentially affected systems until updated.
- Prioritize systems where MCP2221-compatible devices are used or tested.
Validation and detection
- Inventory Linux kernel versions against the affected 6.2-series data.
- Confirm the installed kernel includes one of the referenced stable fixes.
- Identify systems loading or packaging the mcp-2221 HID driver.
- Review vendor advisories for backported fixes and support status.
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
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CVE-2023-53459 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.
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.
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/5dc297652dbc557eba7ca7d6a4c5f1940dffffb1CVE reference, Linux
- https://git.kernel.org/stable/c/47e91fdfa511139f2549687edb0d8649b123227bCVE reference, Linux
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.