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CVE-2022-50709

10
FAUCET Score

CVE-2022-50709 is a vulnerability in the Linux kernel's ath9k Wi-Fi driver, specifically within the ath9k_htc_rx_msg() function. It arises from an uninitialized memory read when the ath9k_hif_usb_rx_stream() function allocates a buffer with a zero packet length, leading to ath9k_htc_rx_msg() accessing undefined data. The vulnerability has no assigned CVSS score, but its FAUCET Risk Score is 7/100, indicating a low but present risk. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
LinuxLinux
2.6.35CNA affecteddefault affected
LinuxLinux
>= fb9987d0f748c983bb795a86f47522313f701a08, < 0d2649b288b7b9484e3d4380c0d6c4720a17e473, >= fb9987d0f748c983bb795a86f47522313f701a08, < 2c485f4f2a64258acc5228e78ffb828c68d9e770, >= fb9987d0f748c983bb795a86f47522313f701a08, < 4891a50f5ed8bfcb8f2a4b816b0676f398687783, >= fb9987d0f748c983bb795a86f47522313f701a08, < 84242f15f911f34aec9b22f99d1e9bff19723dbe, >= fb9987d0f748c983bb795a86f47522313f701a08, < 9661724f6206bd606ecf13acada676a9975d230b, >= fb9987d0f748c983bb795a86f47522313f701a08, < b1b4144508adfc585e43856b31baaf9008a3beb4, >= fb9987d0f748c983bb795a86f47522313f701a08, < b383e8abed41cc6ff1a3b34de75df9397fa4878c, >= fb9987d0f748c983bb795a86f47522313f701a08, < f3d2a3b7e290d0bdbddfcee5a6c3d922e2b7e02aCNA affecteddefault unaffected

CVSS Data

CVSS data has not been published for this CVE.

Exploit Intelligence

EPSS Score
0.19%
Probability of exploitation in next 30 days
EPSS Percentile
8.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15

Social Chatter

No social media mentions found for this CVE.

Media Mentions

No media coverage found for this CVE.

Remediation

Vendor Patches (7)

redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-50709Moderate

kernel: wifi: ath9k: avoid uninit memory read in ath9k_htc_rx_msg()

Dec 24, 2025

References

git.kernel.org / stable/c/0d2649b288b7b9484e3d4380c0d6c4720a17e473
git.kernel.org / stable/c/2c485f4f2a64258acc5228e78ffb828c68d9e770
git.kernel.org / stable/c/4891a50f5ed8bfcb8f2a4b816b0676f398687783
git.kernel.org / stable/c/84242f15f911f34aec9b22f99d1e9bff19723dbe
git.kernel.org / stable/c/9661724f6206bd606ecf13acada676a9975d230b
git.kernel.org / stable/c/b1b4144508adfc585e43856b31baaf9008a3beb4
git.kernel.org / stable/c/b383e8abed41cc6ff1a3b34de75df9397fa4878c
git.kernel.org / stable/c/f3d2a3b7e290d0bdbddfcee5a6c3d922e2b7e02a