What is CVE-2022-49325?

CVE-2022-49325 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 2.6.17 onward and patched in 5.15.47, 5.17.15, 5.18.4 and others. CVE-2022-49325 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49325?

CVE-2022-49325 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-2022-49325?

Yes, CVE-2022-49325 has been patched. Fixed versions include 5.15.47, 5.17.15, 5.18.4 and others. If you are running Linux kernel 2.6.17 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49325 actively exploited?

CVE-2022-49325 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-49325

Medium

In the Linux kernel, the following vulnerability has been resolved: tcp: add accessors to read/set tp->snd_cwnd We had various bugs over the years with code breaking the assumption that tp->snd_cwnd is greater than zero. Lately, syzbot reported the WARN_ON_ONCE(!tp->prior_cwnd) added in commit 8b8a321ff72c ("tcp: fix zero cwnd in tcp_cwnd_reduction") can trigger, and without a repro we would have to spend considerable time finding the bug. Instead of complaining too late, we want to catch where and when tp->snd_cwnd is set to an illegal value.

Package Linux Kernel

Published 2025-02-26

Last modified 2025-09-22

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-617

CVE-2022-49325 is classified as CWE-617

See CWE-617 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 2.6.17 and later are affected. Fixed in 5.15.47, 5.17.15, 5.18.4, 5.19 and their respective stable series.

Affected from

≥ 2.6.17

Fixed in

✓ 5.15.47 5.15.x ✓ 5.17.15 5.17.x ✓ 5.18.4 5.18.x ✓ 5.19

References

The following references provide additional information about CVE-2022-49325 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/3308676ec525901bf1656014003c443a60730a04
Patch
Kernel patch commit
https://git.kernel.org/stable/c/40570375356c874b1578e05c1dcc3ff7c1322dbe
Patch
Kernel patch commit
https://git.kernel.org/stable/c/41e191fe72282e193a7744e2fc1786b23156c9e4
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2022-49325

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-02-26

Modified 2025-09-22

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49325?

CVE-2022-49325 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 2.6.17 onward and has been patched in 5.15.47, 5.17.15, 5.18.4 and others. CVE-2022-49325 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49325?

CVE-2022-49325 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-2022-49325?

Yes — CVE-2022-49325 has been patched. Fixed versions include 5.15.47, 5.17.15, 5.18.4 and others. If you are running Linux kernel 2.6.17 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49325 actively exploited?

No — CVE-2022-49325 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.