CVE-2025-37943
Description
A flaw was discovered in the Linux kernel's driver for Qualcomm Atheros Wi-fi 7 driver (ath12k). An attacker with the ability to generate real or simulated network traffic could exploit this vulnerability to modify kernel memory, leading to a denial of service, compromised system integrity, or an elevation of privileges.
Statement
This vulnerability in the ath12k driver can be exploited when hardware which uses that driver provides malformed packets, specifically packets with a header length longer than permitted by the Wi-Fi specification. An attacker who can generate packets to be processed by this driver could exploit this flaw to alter kernel memory, resulting in the ability to escalate their privileges or otherwise compromise system integrity and stability.
These drivers are not included in Red Hat Enterprise Linux prior to 9.6, so those systems are unaffected.
Mitigation
To mitigate this issue, prevent the `ath12k` module from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically. Note that this will make hardware that uses that chipset unavailable, so this mitigation is not suitable for systems that rely on Qualcomm Wi-Fi 7 network adapters.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7 | 7.8 | 8.8 |
| Attack Vector | Local | Local | Adjacent Network |
| Attack Complexity | High | Low | Low |
| Privileges Required | Low | Low | None |
| User Interaction | None | None | None |
| Scope | Unchanged | Unchanged | Unchanged |
| Confidentiality | High | High | High |
| Integrity Impact | High | High | High |
| Availability Impact | High | High | High |
Vector
Red Hat: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
cve.org: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Understanding the Weakness (CWE)
Availability,Integrity
Technical Impact: Unexpected State; DoS: Crash, Exit, or Restart
An unexpected return value could place the system in a state that could lead to a crash or other unintended behaviors.
Frequently Asked Questions
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