What is CVE-2022-49727?

CVE-2022-49727 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Integer Overflow flaw (CWE-190), affecting Linux kernel versions from 3.5 onward and patched in 4.9.320, 4.14.285, 4.19.249 and others. CVE-2022-49727 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49727?

CVE-2022-49727 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-2022-49727?

Yes, CVE-2022-49727 has been patched. Fixed versions include 4.9.320, 4.14.285, 4.19.249 and others. If you are running Linux kernel 3.5 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49727 actively exploited?

CVE-2022-49727 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Integer Overflow (CWE-190)?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/190.html

CVE-2022-49727

Medium

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg When len >= INT_MAX - transhdrlen, ulen = len + transhdrlen will be overflow. To fix, we can follow what udpv6 does and subtract the transhdrlen from the max.

Package Linux Kernel

Published 2025-02-26

Last modified 2025-10-01

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

Weakness type

CWE-190

CVE-2022-49727 is a Integer Overflow vulnerability

What is Integer Overflow?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. Learn more on MITRE CWE

Affected versions

Linux kernel versions 3.5 and later are affected. Fixed in 4.9.320, 4.14.285, 4.19.249, 5.4.200, 5.10.124, 5.15.49, 5.18.6, 5.19 and their respective stable series.

Affected from

≥ 3.5

Fixed in

✓ 4.9.320 4.9.x ✓ 4.14.285 4.14.x ✓ 4.19.249 4.19.x ✓ 5.4.200 5.4.x ✓ 5.10.124 5.10.x ✓ 5.15.49 5.15.x ✓ 5.18.6 5.18.x ✓ 5.19

References

The following references provide additional information about CVE-2022-49727 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/034246122f5c5e2e2a0b9fe04e24517920e9beb1
Patch
Kernel patch commit
https://git.kernel.org/stable/c/0e818d433fc2718fe4da044ffca7431812a7e04e
Patch
Kernel patch commit
https://git.kernel.org/stable/c/27a37755ceb401111ded76810359d3adc4b268a1
Patch

8 patch commits total View all on NVD

Details

CVE ID CVE-2022-49727

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-02-26

Modified 2025-10-01

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49727?

CVE-2022-49727 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Integer Overflow flaw (CWE-190) . It affects Linux kernel versions from 3.5 onward and has been patched in 4.9.320, 4.14.285, 4.19.249 and others. CVE-2022-49727 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49727?

CVE-2022-49727 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-2022-49727?

Yes — CVE-2022-49727 has been patched. Fixed versions include 4.9.320, 4.14.285, 4.19.249 and others. If you are running Linux kernel 3.5 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49727 actively exploited?

No — CVE-2022-49727 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Integer Overflow (CWE-190)?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. View CWE-190 on MITRE CWE →