What is CVE-2022-49610?

CVE-2022-49610 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 3.16.57 onward and patched in 5.18.14 and 5.19. CVE-2022-49610 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49610?

CVE-2022-49610 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-2022-49610?

Yes, CVE-2022-49610 has been patched. Fixed versions include 5.18.14 and 5.19. If you are running Linux kernel 3.16.57 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49610 actively exploited?

CVE-2022-49610 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-49610

Medium

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Prevent RSB underflow before vmenter On VMX, there are some balanced returns between the time the guest's SPEC_CTRL value is written, and the vmenter. Balanced returns (matched by a preceding call) are usually ok, but it's at least theoretically possible an NMI with a deep call stack could empty the RSB before one of the returns. For maximum paranoia, don't allow *any* returns (balanced or otherwise) between the SPEC_CTRL write and the vmenter. [ bp: Fix 32-bit build. ]

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 3.16.57, 4.4.168, 4.16 and later are affected. Fixed in 5.18.14, 5.19 and their respective stable series.

Affected from

≥ 3.16.57 ≥ 4.4.168 ≥ 4.16

Fixed in

✓ 5.18.14 5.18.x ✓ 5.19

References

The following references provide additional information about CVE-2022-49610 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/07853adc29a058c5fd143c14e5ac528448a72ed9
Patch
Kernel patch commit
https://git.kernel.org/stable/c/afd743f6dde87296c6f3414706964c491bb85862
Patch

Details

CVE ID CVE-2022-49610

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-2022-49610?

CVE-2022-49610 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 3.16.57 onward and has been patched in 5.18.14 and 5.19. CVE-2022-49610 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49610?

CVE-2022-49610 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-2022-49610?

Yes — CVE-2022-49610 has been patched. Fixed versions include 5.18.14 and 5.19. If you are running Linux kernel 3.16.57 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49610 actively exploited?

No — CVE-2022-49610 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.