What is CVE-2022-49611?

CVE-2022-49611 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 4.14.14 onward and patched in 4.14.297, 4.19.266, 5.4.217 and others. CVE-2022-49611 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49611?

CVE-2022-49611 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2022-49611?

Yes, CVE-2022-49611 has been patched. Fixed versions include 4.14.297, 4.19.266, 5.4.217 and others. If you are running Linux kernel 4.14.14 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49611 actively exploited?

CVE-2022-49611 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-49611

Medium

In the Linux kernel, the following vulnerability has been resolved: x86/speculation: Fill RSB on vmexit for IBRS Prevent RSB underflow/poisoning attacks with RSB. While at it, add a bunch of comments to attempt to document the current state of tribal knowledge about RSB attacks and what exactly is being mitigated.

Package Linux Kernel

Published 2025-02-26

Last modified 2025-10-23

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Affected versions

Linux kernel versions 4.14.14, 3.2.101, 3.16.56, 4.4.113, 4.9.77, 4.15 and later are affected. Fixed in 4.14.297, 4.19.266, 5.4.217, 5.10.133, 5.15.57, 5.18.14, 5.19 and their respective stable series.

Affected from

≥ 4.14.14 ≥ 3.2.101 ≥ 3.16.56 ≥ 4.4.113 ≥ 4.9.77 ≥ 4.15

Fixed in

✓ 4.14.297 4.14.x ✓ 4.19.266 4.19.x ✓ 5.4.217 5.4.x ✓ 5.10.133 5.10.x ✓ 5.15.57 5.15.x ✓ 5.18.14 5.18.x ✓ 5.19

References

The following references provide additional information about CVE-2022-49611 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/17a9fc4a7b91f8599223631bb6ae6416bc0de1c0
Patch
Kernel patch commit
https://git.kernel.org/stable/c/3d323b99ff5c8c57005184056d65f6af5b0479d8
Patch
Kernel patch commit
https://git.kernel.org/stable/c/4d7f72b6e1bc630bec7e4cd51814bc2b092bf153
Patch

7 patch commits total View all on NVD

Details

CVE ID CVE-2022-49611

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-02-26

Modified 2025-10-23

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49611?

CVE-2022-49611 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 4.14.14 onward and has been patched in 4.14.297, 4.19.266, 5.4.217 and others. CVE-2022-49611 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49611?

CVE-2022-49611 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2022-49611?

Yes — CVE-2022-49611 has been patched. Fixed versions include 4.14.297, 4.19.266, 5.4.217 and others. If you are running Linux kernel 4.14.14 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49611 actively exploited?

No — CVE-2022-49611 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.