Linux Kernel up to 5.11.6 ioctl_linux.c rtw_wx_set_scan buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel up to 5.11.6. This affects the function rtw_wx_set_scan of the file drivers/staging/rtl8188eu/os_dep/ioctl_linux.c. The manipulation leads to buffer overflow. This vulnerability is documented as CVE-2021-28660. There is not any exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 5.11.6 (Operating System). This issue affects the function rtw_wx_set_scan of the file drivers/staging/rtl8188eu/os_dep/ioctl_linux.c. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability.

The weakness was released 03/18/2021. It is possible to read the advisory at git.kernel.org. The identification of this vulnerability is CVE-2021-28660. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 246409 (Linux Distros Unpatched Vulnerability : CVE-2021-28660), which helps to determine the existence of the flaw in a target environment.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.

The vulnerability is also documented in the vulnerability database at Tenable (246409). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 246409
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2021-28660

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: git.kernel.org

Timelineinfo

03/17/2021 🔍
03/18/2021 +1 days 🔍
03/18/2021 +0 days 🔍
08/09/2025 +1605 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2021-28660 (🔍)
GCVE (CVE): GCVE-0-2021-28660
GCVE (VulDB): GCVE-100-171371

Entryinfo

Created: 03/18/2021 07:32
Updated: 08/09/2025 05:33
Changes: 03/18/2021 07:32 (41), 04/02/2021 10:12 (5), 04/02/2021 10:19 (18), 08/09/2025 05:33 (17)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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