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Back to active CVEs
High · CVSS 8.8CVE-2025-37943

wifi: ath12k: Fix invalid data access in ath12k_dp_rx_h_undecap_nwifiCVE-2025-37943

Answer in brief

CVE-2025-37943 records a High severity (CVSS 8.8) vulnerability in wifi: ath12k: Fix invalid data access in ath12k_dp_rx_h_undecap_nwifi. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published May 20, 2025Updated Aug 5, 2026Source checked Nov 5, 2026First seen by HOL Aug 5, 2026Material review Aug 5, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.8
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=d889913205cf7ebda905b1e62c5867ed4e39f6c2 <7f1d986da5c6abb75ffe4d0d325fc9b341c41a1c || >=d889913205cf7ebda905b1e62c5867ed4e39f6c2 <3abe15e756481c45f6acba3d476cb3ca4afc3b61 || >=d889913205cf7ebda905b1e62c5867ed4e39f6c2 <6ee653194ddb83674913fd2727b8ecfae0597ade || >=d889913205cf7ebda905b1e62c5867ed4e39f6c2 <50be1fb76556e80af9f5da80f28168b6c71bce58 || >=d889913205cf7ebda905b1e62c5867ed4e39f6c2 <9a0dddfb30f120db3851627935851d262e4e7acb7f1d986da5c6abb75ffe4d0d325fc9b341c41a1c, 3abe15e756481c45f6acba3d476cb3ca4afc3b61, 6ee653194ddb83674913fd2727b8ecfae0597ade, 50be1fb76556e80af9f5da80f28168b6c71bce58, 9a0dddfb30f120db3851627935851d262e4e7acb
Linux/Linuxgeneric6.3Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to 7f1d986da5c6abb75ffe4d0d325fc9b341c41a1c if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    May 20, 2025

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Aug 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 5, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: Fix invalid data access in ath12k_dp_rx_h_undecap_nwifi In certain cases, hardware might provide packets with a length greater than the maximum native Wi-Fi header length. This can lead to accessing and modifying fields in the header within the ath12k_dp_rx_h_undecap_nwifi function for DP_RX_DECAP_TYPE_NATIVE_WIFI decap type and potentially resulting in invalid data access and memory corruption. Add a sanity check before processing the SKB to prevent invalid data access in the undecap native Wi-Fi function for the DP_RX_DECAP_TYPE_NATIVE_WIFI decap type. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Memory Corruption
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Nov 5, 2026
References
5 linked sources
Open source record