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Review reviewHigh

CVE-2025-38484

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: iio: backend: fix out-of-bound write The buffer is set to 80 character. If a caller write more characters, count is truncated to the max available space in "simple_write_to_buffer". But afterwards a string terminator is written to the buffer at offset count without boundary check. The zero termination is written OUT-OF-BOUND. Add a check that the given buffer is smaller then the buffer to prevent.

CVSS
7.8
EPSS
0.15%
4.93% percentile
CISA KEV
Not listed
Published
2025.07.28
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.15%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: iio: backend: fix out-of-bound write The buffer is set to 80 character. If a caller write more characters, count is truncated to the max available space in "simple_write_to_buffer". But afterwards a string terminator is written to the buffer at offset count without boundary check. The zero termination is written OUT-OF-BOUND. Add a check that the given buffer is smaller then the buffer to prevent.

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= df3892e5e861c43d5612728ed259634675b8a71f < 6eea9f7648ddb9e4903735a1f77cf196c957aa38, >= 035b4989211dc1c8626e186d655ae8ca5141bb73 < 01e941aa7f5175125df4ac5d3aab099961525602, >= 035b4989211dc1c8626e186d655ae8ca5141bb73 < da9374819eb3885636934c1006d450c3cb1a02ed, >= 04271a4d2740f98bbe36f82cd3d74677a839d1eb, >= fd791c81f410ab1c554686a6f486dc7a176dfe35, >= 6.12.23 < 6.12.40, >= 6.13.11 < 6.14, >= 6.14.2 < 6.15, >= 6.15, >= 6.14.2 < 6.15.8, 6.16
Fixed versions
6.12.40, 6.14, 6.15.8

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-787
CVE-2025-38484 — Linux Linux, linux kernel | SECUFOCUS NOW