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CVE Record

CVE-2024-42125: wifi: rtw89: fw: scan offload prohibit all 6 GHz channel if no 6 GHz sband

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: fw: scan offload prohibit all 6 GHz channel if no 6 GHz sband We have some policy via BIOS to block uses of 6 GHz. In this case, 6 GHz sband will be NULL even if it is WiFi 7 chip. So, add NULL handling here to avoid crash.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This is a Linux kernel Wi-Fi driver crash risk. On some systems, BIOS policy can disable 6 GHz Wi-Fi data, and the rtw89 driver failed to handle that missing data safely during scan offload. The public sources describe a crash fix, not data theft or remote takeover.

Executive priority

Treat as a targeted stability issue, not a broad emergency. Patch through normal endpoint kernel update channels, with higher priority for Linux laptops or managed endpoints using rtw89 Wi-Fi hardware.

Technical view

The rtw89 firmware scan offload path could dereference a NULL 6 GHz supported-band structure when BIOS policy blocks 6 GHz use. The fix adds NULL handling to prohibit 6 GHz channels when that structure is absent. The affected record names Linux kernel 6.9, fixed in 6.9.9, and 6.10 context.

Likely exposure

Exposure is most likely on Linux systems using affected 6.9-era kernels with rtw89 Wi-Fi hardware and BIOS policy that blocks 6 GHz. Servers without this Wi-Fi driver path are unlikely to be exposed based on the provided sources.

Exploitation context

The bundle shows KEV false and provides no evidence of active exploitation. The described impact is a kernel crash condition triggered by missing 6 GHz band data in the Wi-Fi scan offload path. Public evidence is incomplete on attacker reachability or prerequisites.

Researcher notes

The CVE text is narrow and patch-oriented. It does not include CVSS, CWE, exploitability analysis, or a confirmed security boundary. Avoid overstating impact beyond crash avoidance unless downstream vendor advisories provide more detail.

Mitigation direction

  • Update to a distribution kernel containing the referenced stable rtw89 fixes.
  • Prioritize laptops or endpoints using rtw89 Wi-Fi on Linux 6.9-era kernels.
  • Check vendor kernel advisories before assuming exact fixed package versions.
  • Consider disabling affected Wi-Fi hardware only if patching is delayed and crash risk is material.

Validation and detection

  • Inventory Linux kernel versions against the affected 6.9, 6.9.9, and 6.10 record context.
  • Identify endpoints using the rtw89 Wi-Fi driver family.
  • Check whether BIOS or platform policy disables 6 GHz Wi-Fi use.
  • Confirm installed kernel packages include the referenced stable commits or downstream backports.
Prepared
Confidence
medium
Sources
4

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.

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CVE-2024-42125 mapping review

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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
2ADP providers
3Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

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.

ADP provider summaries

CVECVE Program Container
CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux4ba24331c973eb1df0d3b67b0e3f8b7cde7765a7, 4ba24331c973eb1df0d3b67b0e3f8b7cde7765a7unaffected
LinuxLinux6.9, 0, 6.9.9, 6.10affected
Weakness

CWE details

No CWE listed

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