What is CVE-2022-49852?

CVE-2022-49852 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10, affecting Linux kernel versions from 4.15 onward and patched in 4.19.267, 5.4.225, 5.10.155 and others. CVE-2022-49852 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49852?

CVE-2022-49852 has a CVSS score of 7.1 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:N/A:H.

Is there a patch available for CVE-2022-49852?

Yes, CVE-2022-49852 has been patched. Fixed versions include 4.19.267, 5.4.225, 5.10.155 and others. If you are running Linux kernel 4.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49852 actively exploited?

CVE-2022-49852 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-49852

High

In the Linux kernel, the following vulnerability has been resolved: riscv: process: fix kernel info leakage thread_struct's s[12] may contain random kernel memory content, which may be finally leaked to userspace. This is a security hole. Fix it by clearing the s[12] array in thread_struct when fork. As for kthread case, it's better to clear the s[12] array as well.

Package Linux Kernel

Published 2025-05-01

Last modified 2026-01-23

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.1

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Affected versions

Linux kernel versions 4.15 and later are affected. Fixed in 4.19.267, 5.4.225, 5.10.155, 5.15.79, 6.0.9, 6.1 and their respective stable series.

Affected from

≥ 4.15

Fixed in

✓ 4.19.267 4.19.x ✓ 5.4.225 5.4.x ✓ 5.10.155 5.10.x ✓ 5.15.79 5.15.x ✓ 6.0.9 6.0.x ✓ 6.1

References

The following references provide additional information about CVE-2022-49852 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/358a68f98304b40b201ba5afe94c20355aa3dc68
Patch
Kernel patch commit
https://git.kernel.org/stable/c/6510c78490c490a6636e48b61eeaa6fb65981f4b
Patch
Kernel patch commit
https://git.kernel.org/stable/c/c4601d30f7d989b4f354df899ab85b5f7a750d30
Patch

6 patch commits total View all on NVD

Details

CVE ID CVE-2022-49852

Severity High

CVSS score 7.1 / 10

CVSS version 3.1

Published 2025-05-01

Modified 2026-01-23

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49852?

CVE-2022-49852 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10 . It affects Linux kernel versions from 4.15 onward and has been patched in 4.19.267, 5.4.225, 5.10.155 and others. CVE-2022-49852 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49852?

CVE-2022-49852 has a CVSS score of 7.1 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:N/A:H.
Is there a patch available for CVE-2022-49852?

Yes — CVE-2022-49852 has been patched. Fixed versions include 4.19.267, 5.4.225, 5.10.155 and others. If you are running Linux kernel 4.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49852 actively exploited?

No — CVE-2022-49852 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.