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CVE Record

CVE-2026-23363: wifi: mt76: mt7925: Fix possible oob access in mt7925_mac_write_txwi_80211()

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7925: Fix possible oob access in mt7925_mac_write_txwi_80211() Check frame length before accessing the mgmt fields in mt7925_mac_write_txwi_80211 in order to avoid a possible oob access.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This is a Linux kernel Wi-Fi driver flaw. The mt7925 driver could read outside expected frame data because it did not check frame length before accessing management fields. The source does not provide CVSS, impact detail, or confirmed exploitation.

Executive priority

Prioritize routine but timely patching for Linux laptops, workstations, and edge devices with MediaTek MT7925 Wi-Fi. This is not source-supported as an emergency issue without CVSS, impact detail, or exploitation evidence.

Technical view

CVE-2026-23363 affects Linux kernel mt76/mt7925 code in mt7925_mac_write_txwi_80211(). The fix adds a frame-length check before reading 802.11 management fields to prevent possible out-of-bounds access. Kernel stable commit references are provided, but no CWE or CVSS is listed.

Likely exposure

Exposure is most likely on Linux systems running affected kernel versions with MediaTek MT7925 Wi-Fi support. General Linux servers without this wireless driver or hardware are less likely to be exposed, based on the driver-specific source description.

Exploitation context

The bundle says CISA KEV is false and gives no public exploitation evidence. Treat active exploitation as unconfirmed. The practical exploitability and impact are unclear from the provided sources.

Researcher notes

Key unknowns are exploitability, reachable attack surface, and consequence of the out-of-bounds access. The reliable source fact is narrow: missing frame-length validation in mt7925_mac_write_txwi_80211(), fixed by referenced Linux stable commits.

Mitigation direction

  • Inventory Linux systems using mt76 or mt7925 wireless support.
  • Apply kernel or distribution updates containing the referenced stable fixes.
  • Track Linux distribution advisories for packaged fix availability.
  • If no update is available, follow vendor guidance before changing driver availability.

Validation and detection

  • Check whether affected systems run kernels listed in the CVE source bundle.
  • Verify whether mt76 or mt7925 wireless support is present on those systems.
  • Confirm vendor kernel changelogs include one of the cited stable commits.
  • Record systems without MT7925 hardware separately from confirmed driver exposure.
Prepared
Confidence
medium
Sources
6

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

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CVE-2026-23363 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
0ADP providers
5Source 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
LinuxLinuxc948b5da6bbec742b433138e3e3f9537a85af2e5, c948b5da6bbec742b433138e3e3f9537a85af2e5, c948b5da6bbec742b433138e3e3f9537a85af2e5, c948b5da6bbec742b433138e3e3f9537a85af2e5unaffected
LinuxLinux6.7, 0, 6.12.77, 6.18.17, 6.19.7, 7.0affected
Weakness

CWE details

No CWE listed

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