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Linux KernelOperating system · Linux

CVE-2025-37857

MEDIUM · 5.5 CVSS v3.1 Published 2025-05-09
Fix available
A fix is available. Upgrade to 5.4.293 / 5.10.237 or later.
See remediation →
57/100
Remediation priority · Elevated
Zero-click Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
In the Linux kernel, the following vulnerability has been resolved: scsi: st: Fix array overflow in st_setup() Change the array size to follow parms size instead of a fixed value.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-190

An arithmetic operation produces a value too large for its type and wraps around to an unexpected — often tiny or negative — number. That miscalculated value then drives a memory allocation or a bounds check, opening the door to corruption. The fix is checked arithmetic and validating sizes before they're used.

General guidance for the integer overflow class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Linux KernelOperating system
Affected:< 5.4.293>= 5.5, < 5.10.237>= 5.11, < 5.15.181>= 5.16, < 6.1.135>= 6.2, < 6.6.88>= 6.7, < 6.12.24>= 6.13, < 6.13.12>= 6.14, < 6.14.3
Debian LinuxOperating system
Affected:= 11.0

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 5.4.293 / 5.10.237 / 5.15.181 or later
Fixed in 5.4.2935.10.2375.15.181
Vendor patch git.kernel.org →
Recommended fix High confidence

Upgrade to kernel >= 5.4.293, >= 5.10.237, >= 5.15.181, >= 6.1.135, or later stable releases (Debian 11: install available security updates)

  1. 1. Check current kernel version: `uname -r` or `cat /proc/version`
  2. 2. Compare running kernel version against affected ranges: < 5.4.293, 5.5-5.10.236, 5.11-5.15.180, 5.16-6.1.134
  3. 3. For Debian 11, check for available kernel updates: `apt-cache policy linux-image-*`
  4. 4. Upgrade to a fixed kernel version: for 5.4.x line use >= 5.4.293, for 5.10.x use >= 5.10.237, for 5.15.x use >= 5.15.181, for 6.1.x use >= 6.1.135
  5. 5. On Debian: `apt-get update && apt-get install linux-image-<version>`
  6. 6. Reboot the system to load the patched kernel: `reboot`
  7. 7. After reboot, verify the new kernel is running and the vulnerability is addressed: `uname -r`
Caveat Kernel upgrades may require reboot and could introduce compatibility issues with custom modules or specific hardware drivers; test in staging if possible

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $2,850. Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-37857 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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