What is CVE-2021-47322?

CVE-2021-47322 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Out-of-bounds Write flaw (CWE-787), affecting Linux kernel versions from 5.7 onward and patched in 5.10.52, 5.12.19, 5.13.4 and others. CVE-2021-47322 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47322?

CVE-2021-47322 has a CVSS score of 7.8 out of 10, rated High severity. 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-2021-47322?

Yes, CVE-2021-47322 has been patched. Fixed versions include 5.10.52, 5.12.19, 5.13.4 and others. If you are running Linux kernel 5.7 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2021-47322 actively exploited?

CVE-2021-47322 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Out-of-bounds Write (CWE-787)?

The product writes data past the end or before the beginning of the intended buffer. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/787.html

CVE-2021-47322

High

In the Linux kernel, the following vulnerability has been resolved: NFSv4: Fix an Oops in pnfs_mark_request_commit() when doing O_DIRECT Fix an Oopsable condition in pnfs_mark_request_commit() when we're putting a set of writes on the commit list to reschedule them after a failed pNFS attempt.

Package Linux Kernel

Published 2024-05-21

Last modified 2025-05-12

CVSS version 3.1

Patch available

Yes

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-787

CVE-2021-47322 is a Out-of-bounds Write vulnerability

What is Out-of-bounds Write?

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

Affected versions

Linux kernel versions 5.7 and later are affected. Fixed in 5.10.52, 5.12.19, 5.13.4, 5.14 and their respective stable series.

Affected from

≥ 5.7

Fixed in

✓ 5.10.52 5.10.x ✓ 5.12.19 5.12.x ✓ 5.13.4 5.13.x ✓ 5.14

References

4 total

Kernel Git
https://git.kernel.org/stable/c/3731d44bba8e0116b052b1b374476c5f6dd9a456

Patch
Kernel Git
https://git.kernel.org/stable/c/5c7ef8a3705542136a1e19b070e951f0730b2153

Patch
Kernel Git
https://git.kernel.org/stable/c/7aec9f862411906f8c27071ba65a1e110ad7d2fd

Patch
Kernel Git
https://git.kernel.org/stable/c/7c96a2ee45be41d5a167e6332d202086752c36bb

Patch

Details

CVE ID CVE-2021-47322

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2024-05-21

Modified 2025-05-12

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2021-47322?

CVE-2021-47322 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Out-of-bounds Write flaw (CWE-787) . It affects Linux kernel versions from 5.7 onward and has been patched in 5.10.52, 5.12.19, 5.13.4 and others. CVE-2021-47322 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47322?

CVE-2021-47322 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-2021-47322?

Yes. CVE-2021-47322 has been patched. Fixed versions include 5.10.52, 5.12.19, 5.13.4 and others. If you are running Linux kernel 5.7 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2021-47322 actively exploited?

No. CVE-2021-47322 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.