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CVE-2025-38737

Linux Kernel vulnerability

9.8 CRITICALEPSS 0.38%
  1. Published5 Sept 2025

Description

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix oops due to uninitialised variable Fix smb3_init_transform_rq() to initialise buffer to NULL before calling netfs_alloc_folioq_buffer() as netfs assumes it can append to the buffer it is given. Setting it to NULL means it should start a fresh buffer, but the value is currently undefined.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Linux Kernel≥ 6.12 < 6.12.44 · ≥ 6.13 < 6.16.4 · 6.17

Remediation

Fixed in
Linux Kernel≥ 6.12.44

References

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Frequently asked

Is CVE-2025-38737 being actively exploited?

CVE-2025-38737 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.38%.

How severe is CVE-2025-38737?

CVE-2025-38737 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.38% probability of exploitation.

Which products are affected by CVE-2025-38737?

Affected products include Linux Kernel.

How do I fix CVE-2025-38737?

Upgrade affected software to a fixed version, for example Linux Kernel 6.12.44 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-38737 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.