CVE-2022-47940

High

An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.18 before 5.18.18. fs/ksmbd/smb2pdu.c lacks length validation in the non-padding case in smb2_write.

Package Linux Kernel
Published 2022-12-23
Last modified 2025-04-14
CVSS version 3.1
Patch available
Awaiting data

CVSS 3.1 score

8.1

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

Weakness type

CWE-125

CVE-2022-47940 is a Out-of-bounds Read vulnerability

What is Out-of-bounds Read?

The product reads data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE

References

4 total

Frequently asked questions

  • What is CVE-2022-47940?

    CVE-2022-47940 is a High severity Linux kernel vulnerability with a CVSS score of 8.1 out of 10 , classified as an Out-of-bounds Read flaw (CWE-125) . CVE-2022-47940 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2022-47940?

    CVE-2022-47940 has a CVSS score of 8.1 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H .

  • Is there a patch available for CVE-2022-47940?

    Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2022-47940 patch availability.

  • Is CVE-2022-47940 actively exploited?

    No. CVE-2022-47940 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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