CVE-2024-46827

Pre-auth firmware crash via zero peer NSS

Published Sep 27, 2024 · Updated May 11, 2026

Denial of service in the Linux kernel ath12k driver allows physically proximate attackers to crash AP firmware via a crafted association request. ath12k_station_assoc forwards a zero peer_nss derived from an all-zero EHT MCS-NSS set to firmware without first validating the value. The target must use affected ath12k hardware in access-point mode; repeated nearby station requests can interrupt wireless service.

CVSS severity5.5
Medium
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

Denial of service in the Linux kernel ath12k driver allows physically proximate attackers to crash AP firmware via a crafted association request. ath12k_station_assoc forwards a zero peer_nss derived from an all-zero EHT MCS-NSS set to firmware without first validating the value. The target must use affected ath12k hardware in access-point mode; repeated nearby station requests can interrupt wireless service.

The record

CVE
CVE-2024-46827
Published
Sep 27, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 27, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=6.3
  2. Affected versionversion=d889913205cf7ebda905b1e62c5867ed4e39f6c2 <25a15f80253a7c8776e4e4880d797d20ec864154
  3. Affected versionversion=d889913205cf7ebda905b1e62c5867ed4e39f6c2 <838c2cfdb6be7d7d8c06c711edf893eb34ca2e7c
  4. Affected versionversion=d889913205cf7ebda905b1e62c5867ed4e39f6c2 <db163a463bb93cd3e37e1e7b10b9726fb6f95857

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.3; version=d889913205cf7ebda905b1e62c5867ed4e39f6c2 <25a15f80253a7c8776e4e4880d797d20ec864154; version=d889913205cf7ebda905b1e62c5867ed4e39f6c2 <838c2cfdb6be7d7d8c06c711edf893eb34ca2e7c; version=d889913205cf7ebda905b1e62c5867ed4e39f6c2 <db163a463bb93cd3e37e1e7b10b9726fb6f95857

Published CVSS scores

5.5UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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