What is CVE-2025-37839?

CVE-2025-37839 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 3.2.71 onward and patched in 5.4.293, 5.10.237, 5.15.181 and others. CVE-2025-37839 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-37839?

CVE-2025-37839 has a CVSS score of 7.8 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:H/A:H.

Is there a patch available for CVE-2025-37839?

Yes, CVE-2025-37839 has been patched. Fixed versions include 5.4.293, 5.10.237, 5.15.181 and others. If you are running Linux kernel 3.2.71 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-37839 actively exploited?

CVE-2025-37839 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-37839

High

In the Linux kernel, the following vulnerability has been resolved: jbd2: remove wrong sb->s_sequence check Journal emptiness is not determined by sb->s_sequence == 0 but rather by sb->s_start == 0 (which is set a few lines above). Furthermore 0 is a valid transaction ID so the check can spuriously trigger. Remove the invalid WARN_ON.

Package Linux Kernel

Published 2025-05-09

Last modified 2025-11-14

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Affected versions

Linux kernel versions 3.2.71, 3.4 and later are affected. Fixed in 5.4.293, 5.10.237, 5.15.181, 6.1.135, 6.6.88, 6.12.24, 6.13.12, 6.14.3, 6.15 and their respective stable series.

Affected from

≥ 3.2.71 ≥ 3.4

Fixed in

✓ 5.4.293 5.4.x ✓ 5.10.237 5.10.x ✓ 5.15.181 5.15.x ✓ 6.1.135 6.1.x ✓ 6.6.88 6.6.x ✓ 6.12.24 6.12.x ✓ 6.13.12 6.13.x ✓ 6.14.3 6.14.x ✓ 6.15

References

11 total

Kernel Git
https://git.kernel.org/stable/c/3b4643ffaf72d7a5a357e9bf68b1775f8cfe7e77

Patch
Kernel Git
https://git.kernel.org/stable/c/9eaec071f111cd2124ce9a5b93536d3f6837d457

Patch
Kernel Git
https://git.kernel.org/stable/c/ad926f735b4d4f10768fec7d080cadeb6d075cac

Patch
Kernel Git
https://git.kernel.org/stable/c/b0cca357f85beb6144ab60c62dcc98508cc044bf

Patch
Kernel Git
https://git.kernel.org/stable/c/b479839525fe7906966cdc4b5b2afbca048558a1

Patch

Showing 5 of 11 references View all on NVD

Details

CVE ID CVE-2025-37839

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2025-05-09

Modified 2025-11-14

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-37839?

CVE-2025-37839 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 3.2.71 onward and has been patched in 5.4.293, 5.10.237, 5.15.181 and others. CVE-2025-37839 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-37839?

CVE-2025-37839 has a CVSS score of 7.8 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:H/A:H.
Is there a patch available for CVE-2025-37839?

Yes. CVE-2025-37839 has been patched. Fixed versions include 5.4.293, 5.10.237, 5.15.181 and others. If you are running Linux kernel 3.2.71 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-37839 actively exploited?

No. CVE-2025-37839 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.