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CVE Record

CVE-2026-23325: wifi: mt76: mt7996: Fix possible oob access in mt7996_mac_write_txwi_80211()

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: Fix possible oob access in mt7996_mac_write_txwi_80211() Check frame length before accessing the mgmt fields in mt7996_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

CVE-2026-23325 is a Linux kernel Wi-Fi driver flaw. The mt7996 code could read outside expected data when handling too-short 802.11 management frames. Sources do not provide CVSS, impact details, or evidence of exploitation, so urgency depends on whether affected kernels and MediaTek mt7996 Wi-Fi hardware are present.

Executive priority

Handle as targeted patch management rather than an emergency based on current evidence. Prioritize environments that operate Linux Wi-Fi infrastructure or embedded devices using the affected driver. Lack of CVSS and exploit detail means impact is not fully defined, but kernel out-of-bounds bugs deserve timely remediation where exposure exists.

Technical view

The resolved bug is in mt7996_mac_write_txwi_80211() in the Linux mt76/mt7996 Wi-Fi driver. The fix checks frame length before accessing management-frame fields to prevent possible out-of-bounds access. The source bundle lists affected Linux kernel versions and stable kernel commits, but does not describe attacker position, crashability, privilege impact, or confidentiality impact.

Likely exposure

Likely exposure is limited to Linux systems running affected kernel builds with the mt76 mt7996 Wi-Fi driver path in use. Generic Linux servers without this wireless chipset or driver are less likely to be exposed. Confirm against actual kernel versions, enabled modules, and hardware inventory.

Exploitation context

The supplied sources do not indicate active exploitation, public exploit availability, or KEV listing. They also do not state whether exploitation requires local access, Wi-Fi proximity, malformed wireless frames, or another trigger. Treat exploitation context as incomplete until vendor or maintainer guidance adds detail.

Researcher notes

Focus validation on code lineage, backports, and reachable driver paths. The record only says a length check was added before management-field access, so avoid assuming remote code execution or denial of service without further evidence. Distro kernels may carry fixes without matching upstream version numbers exactly.

Mitigation direction

  • Identify systems using affected Linux kernels and mt76 mt7996 support.
  • Apply the relevant Linux stable kernel update containing the referenced fix commits.
  • Prioritize wireless access points, embedded Linux devices, and systems with MediaTek mt7996 hardware.
  • Check distribution advisories for packaged kernel availability and backport status.
  • If patching is delayed, review vendor guidance for safe temporary mitigations.

Validation and detection

  • Inventory kernel versions across Linux assets and compare with vendor-fixed releases.
  • Check whether mt76 and mt7996 driver support is present or loaded.
  • Review hardware inventory for MediaTek mt7996 Wi-Fi chipsets.
  • Confirm patched builds include one of the referenced stable commits or vendor backports.
  • Monitor kernel and distribution advisories for revised severity or exploit information.
Prepared
Confidence
medium
Sources
7

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

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CVE-2026-23325 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
6Source 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
LinuxLinux98686cd21624c75a043e96812beadddf4f6f48e5, 98686cd21624c75a043e96812beadddf4f6f48e5, 98686cd21624c75a043e96812beadddf4f6f48e5, 98686cd21624c75a043e96812beadddf4f6f48e5, 98686cd21624c75a043e96812beadddf4f6f48e5unaffected
LinuxLinux6.2, 0, 6.6.130, 6.12.77, 6.18.17, 6.19.7, 7.0affected
Weakness

CWE details

No CWE listed

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