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Review reviewHigh

CVE-2025-38679

Linux Linux, SIMATIC CN 4100, linux kernel

In the Linux kernel, the following vulnerability has been resolved: media: venus: Fix OOB read due to missing payload bound check Currently, The event_seq_changed() handler processes a variable number of properties sent by the firmware. The number of properties is indicated by the firmware and used to iterate over the payload. However, the payload size is not being validated against the actual message length. This can lead to out-of-bounds memory access if the firmware provides a property count that exceeds the data available in the payload. Such a condition can result in kernel crashes or...

CVSS
7.1
EPSS
0.16%
5.65% percentile
CISA KEV
Not listed
Published
2025.09.05
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.16%
Technical severityCVSS 7.1

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: media: venus: Fix OOB read due to missing payload bound check Currently, The event_seq_changed() handler processes a variable number of properties sent by the firmware. The number of properties is indicated by the firmware and used to iterate over the payload. However, the payload size is not being validated against the actual message length. This can lead to out-of-bounds memory access if the firmware provides a property count that exceeds the data available in the payload. Such a condition can result in kernel crashes or...

Affected product and versions

Product
Linux Linux, SIMATIC CN 4100, linux kernel
Affected versions
>= 09c2845e8fe4fcab942929480203f504a6e0a114 < a3eef5847603cd8a4110587907988c3f93c9605a, >= 09c2845e8fe4fcab942929480203f504a6e0a114 < 8f274e2b05fdae7a53cee83979202b5ecb49035c, >= 09c2845e8fe4fcab942929480203f504a6e0a114 < 6f08bfb5805637419902f3d70069fe17a404545b, >= 09c2845e8fe4fcab942929480203f504a6e0a114 < c956c3758510b448b3d4d10d1da8230e8c9bf668, >= 09c2845e8fe4fcab942929480203f504a6e0a114 < bed4921055dd7bb4d2eea2729852ae18cf97a2c6, >= 09c2845e8fe4fcab942929480203f504a6e0a114 < 06d6770ff0d8cc8dfd392329a8cc03e2a83e7289, >= 4.13, < V5.0, >= 4.13 < 6.1.149, >= 6.2 < 6.6.103, >= 6.7 < 6.12.43, >= 6.13 < 6.15.11, >= 6.16 < 6.16.2, 11.0
Fixed versions
6.1.149, 6.6.103, 6.12.43, 6.15.11, 6.16.2

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, SIMATIC CN 4100, 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:N/A:H
CWE
CWE-125
CVE-2025-38679 — Linux Linux, SIMATIC CN 4100, linux kernel | SECUFOCUS NOW