Security readout for executives and security teams
Plain-English summary
CVE-2022-50809 is a Linux kernel memory leak in the xHCI Debug Capability allocation path. If DbC is already in use, allocated memory is not freed before returning. Public sources do not provide a CVSS score, exploitation evidence, or business-impact details.
Executive priority
Handle through standard kernel maintenance unless xHCI DbC is used in sensitive environments. The issue appears narrow and lacks public exploitation evidence, but kernel memory leaks still justify timely patch verification.
Technical view
The resolved issue is in xhci_alloc_dbc() under xhci DbC handling. When DbC is already in use, an allocated xhci_dbc structure can be leaked. Kernel stable commits are referenced as fixes, but the source bundle does not describe triggerability beyond that condition.
Likely exposure
Exposure is limited to Linux systems running affected kernel builds with relevant xHCI DbC code. The bundle lists Linux kernel versions including 5.18, 5.15.75, 5.19.17, 6.0.3, and 6.1 as affected, but administrators should verify against their distribution kernel patches.
Exploitation context
No active exploitation is indicated. The CVE is not listed as KEV in the provided data. Public sources describe a memory leak condition, not a remote attack path or exploit technique.
Researcher notes
Evidence is sparse: no CVSS, CWE, exploit status, or detailed affected-version ranges are provided beyond the CVE bundle. Focus analysis on the referenced stable commits and distribution backports rather than assuming upstream version numbers map directly to deployed kernels.
Mitigation direction
- Update to a kernel build containing the referenced stable fixes.
- Check Linux distribution advisories for backported patches.
- Prioritize systems where xHCI Debug Capability is enabled or used.
- Monitor vendor guidance if no package update is available.
Validation and detection
- Inventory Linux kernel versions across managed systems.
- Confirm whether vendor kernels include the referenced fix commits.
- Review whether xHCI DbC is enabled or operationally required.
- Check vulnerability scanners for CVE-2022-50809 coverage updates.
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-2022-50809 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://git.kernel.org/stable/c/103b459590e1eb4d80b02761eb36c7cae1d9b58eCVE reference
- https://git.kernel.org/stable/c/116d6a6964986ea7eb516daa36128d270f1f248dCVE reference
- https://git.kernel.org/stable/c/69e67c804d09a6b1bcda1f4f242f151f813eeb4aCVE reference
- https://git.kernel.org/stable/c/d591b32e519603524a35b172156db71df9116902CVE reference
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.