LiveActive security incident?Get immediate response
CVE Record

CVE-2026-46236: media: rc: xbox_remote: heed DMA restrictions

In the Linux kernel, the following vulnerability has been resolved: media: rc: xbox_remote: heed DMA restrictions The buffer for IO must not be part of the device structure because that violates the DMA coherency rules.

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2026-46236 is a Linux kernel flaw in the xbox_remote media remote-control driver. The issue involves an I/O buffer placed where it violates DMA coherency rules. The public record confirms a kernel fix, but it does not provide CVSS, impact details, or evidence of active exploitation.

Executive priority

Treat this as a patch-management item rather than an emergency unless your environment depends on the affected driver or a vendor assigns higher severity. There is no KEV listing or active-exploitation evidence in the provided sources.

Technical view

The vulnerable code is in the Linux kernel media rc xbox_remote driver. The source states the I/O buffer must not be part of the device structure because that violates DMA coherency rules. Stable kernel commit references indicate the issue has been resolved across kernel branches, but the record does not describe exploit primitives or security impact.

Likely exposure

Exposure is most plausible on Linux systems running an affected kernel build that includes or loads the xbox_remote driver. The bundle does not show internet exposure, affected distributions, or whether the driver must be actively used with hardware.

Exploitation context

The source bundle marks KEV as false and provides no cited evidence of active exploitation or public weaponization. Because severity, CVSS, and concrete impact are missing, exploitation likelihood and business impact cannot be reliably quantified from these sources alone.

Researcher notes

The key technical fact is a DMA coherency rule violation in the xbox_remote driver’s I/O buffer placement. The bundle lacks CVSS, impact analysis, affected distro mapping, and exploitability discussion, so validation should focus on kernel provenance and driver reachability.

Mitigation direction

  • Apply a Linux kernel update containing the referenced stable fixes.
  • Check your Linux distribution advisory for backported fixed package versions.
  • Prioritize systems where the xbox_remote driver is present or loadable.
  • If operationally safe, avoid loading unused affected driver modules.
  • Track CVE and vendor records for severity or impact updates.

Validation and detection

  • Inventory Linux kernel versions across managed systems.
  • Check whether the xbox_remote driver is built, available, or loaded.
  • Compare installed kernels with vendor fixed versions or stable commit lineage.
  • Review distribution security advisories for CVE-2026-46236 coverage.
  • Confirm kernel updates are deployed and running after reboot.
Prepared
Confidence
medium
Sources
10

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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 · low confidence lookup

CVE-2026-46236 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
3Timeline events
0ADP providers
9Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux02d32bdad3123d7376244256936a6b3b6ee434e8, 02d32bdad3123d7376244256936a6b3b6ee434e8, 02d32bdad3123d7376244256936a6b3b6ee434e8, 02d32bdad3123d7376244256936a6b3b6ee434e8, 02d32bdad3123d7376244256936a6b3b6ee434e8, 02d32bdad3123d7376244256936a6b3b6ee434e8, 02d32bdad3123d7376244256936a6b3b6ee434e8, 02d32bdad3123d7376244256936a6b3b6ee434e8unaffected
LinuxLinux5.0, 0, 5.10.258, 5.15.209, 6.1.175, 6.6.140, 6.12.90, 6.18.32, 7.0.9, 7.1affected
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.