CVE-2021-28375

High

An issue was discovered in the Linux kernel through 5.11.6. fastrpc_internal_invoke in drivers/misc/fastrpc.c does not prevent user applications from sending kernel RPC messages, aka CID-20c40794eb85. This is a related issue to CVE-2019-2308.

Package Linux Kernel
Published 2021-03-15
Last modified 2024-11-21
CVSS version 3.1
Patch available
Awaiting data

CVSS 3.1 score

7.8

out of 10
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-862

CVE-2021-28375 is classified as CWE-862

See CWE-862 on MITRE CWE for full details on this weakness type.

Frequently asked questions

  • What is CVE-2021-28375?

    CVE-2021-28375 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2021-28375 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2021-28375?

    CVE-2021-28375 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H .

  • Is there a patch available for CVE-2021-28375?

    No patch is currently available for CVE-2021-28375. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

  • Is CVE-2021-28375 actively exploited?

    No — CVE-2021-28375 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.