CVE-2023-54052

Temporary network interruption via retained transmit buffers

Published Dec 24, 2025 · Updated Dec 24, 2025

A transmit-status handling flaw in the Linux MT7921 Wi-Fi driver allows attackers to temporarily interrupt network connectivity. The MT7921 transmit path requests status for aggregated frames, but AMSDU aggregation can drop that status and leave the associated SKB retained. The condition requires an MT7921 interface sending AMSDU-aggregated traffic; timeout handling restores service, so the interruption is temporary.

CVSS severity7.0
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A transmit-status handling flaw in the Linux MT7921 Wi-Fi driver allows attackers to temporarily interrupt network connectivity. The MT7921 transmit path requests status for aggregated frames, but AMSDU aggregation can drop that status and leave the associated SKB retained. The condition requires an MT7921 interface sending AMSDU-aggregated traffic; timeout handling restores service, so the interruption is temporary.

The record

CVE
CVE-2023-54052
Published
Dec 24, 2025
Updated
Dec 24, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Dec 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=163f4d22c118d4eb9e275bf9ee1577c0d14b3208 <1cd102aaedb277fbe81dd08cd9f5cae951de2bff
  2. Affected versionversion=163f4d22c118d4eb9e275bf9ee1577c0d14b3208 <b642f4c5f3de0a8f47808d32b1ebd9c427a42a66
  3. Affected versionversion=163f4d22c118d4eb9e275bf9ee1577c0d14b3208 <bf5d3fad7219b8de7d3a9cb59f0ea5243b018f07
  4. Affected versionversion=163f4d22c118d4eb9e275bf9ee1577c0d14b3208 <e74778e91fedc3b2a0143264887bbb32508c5000
  5. Affected versionversion=5.12

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=163f4d22c118d4eb9e275bf9ee1577c0d14b3208 <1cd102aaedb277fbe81dd08cd9f5cae951de2bff; version=163f4d22c118d4eb9e275bf9ee1577c0d14b3208 <b642f4c5f3de0a8f47808d32b1ebd9c427a42a66; version=163f4d22c118d4eb9e275bf9ee1577c0d14b3208 <bf5d3fad7219b8de7d3a9cb59f0ea5243b018f07; version=163f4d22c118d4eb9e275bf9ee1577c0d14b3208 <e74778e91fedc3b2a0143264887bbb32508c5000; version=5.12

Published CVSS scores

7.0Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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