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Review reviewHigh

CVE-2021-47135

Linux Linux, linux kernel

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

CVSS
7.8
EPSS
0.22%
12.1% percentile
CISA KEV
Not listed
Published
2024.03.16
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.22%
Technical severityCVSS 7.8

Vulnerability overview

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

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 1c099ab44727c8e42fe4de4d91b53cec3ef02860 < 6919e8a24e70b6ba148fe07f44f835bcdd1a8d02, >= 1c099ab44727c8e42fe4de4d91b53cec3ef02860 < d874e6c06952382897d35bf4094193cd44ae91bd, >= 5.12, >= 5.12 < 5.12.10, 5.13
Fixed versions
5.12.10

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-129