CVE-2021-47135: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: mt76: mt7921: fix possible AOOB issue in mt7921_mcu_tx_rate_report Fix possible array out of bound access in mt7921_mcu_tx_rate_report. Remove unnecessary varibable in mt7921_mcu_tx_rate_report

Is your site exposed to CVE-2021-47135?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

7.8

HIGH

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

Weakness Type (CWE)

CWE-129 CWE-129

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.12 — 5.12.10
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/6919e8a24e70b6ba148fe07f44f835bcdd1a8d02 https://git.kernel.org/stable/c/d874e6c06952382897d35bf4094193cd44ae91bd https://git.kernel.org/stable/c/6919e8a24e70b6ba148fe07f44f835bcdd1a8d02 https://git.kernel.org/stable/c/d874e6c06952382897d35bf4094193cd44ae91bd

Frequently Asked Questions

What is CVE-2021-47135? +

In the Linux kernel, the following vulnerability has been resolved: mt76: mt7921: fix possible AOOB issue in mt7921_mcu_tx_rate_report Fix possible array out of bound access in mt7921_mcu_tx_rate_report. Remove unnecessary varibable in mt7921_mcu_tx_rate_report It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2021-47135? +

CVE-2021-47135 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2021-47135? +

CVE-2021-47135 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2021-47135? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2025-0657

A weakness in Automated Logic and Carrier i-Vu Gen5 router on driver version drv_gen5_106-01-2380, allows malformed packets to be sent …

CVE-2025-66559

Taiko Alethia is an Ethereum-equivalent, permissionless, based rollup designed to scale Ethereum without compromising its fundamental properties. In 2.3.1 and …

CVE-2026-65652

github.com/temporalio/tchannel-go did not validate the one-byte checksum-type field in inbound TChannel call frames. A network peer that can reach a …

CVE-2023-31309

Improper validation in Power Management Firmware (PMFW) may allow an attacker with privileges to pass malformed workload arguments when exporting …

CVE-2026-102510

Integer Overflow, Improper Validation of Array Index, Uncontrolled Recursion and Memory Allocation with Excessive Size Value in the Go implementation …

CVE-2026-65653

github.com/temporalio/tchannel-go did not reject TChannel call fragments containing checksum metadata but no length-prefixed argument chunks. The fragment reader left its …

CVE-2021-47135