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Review reviewHigh

CVE-2025-71112

Linux Linux, SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP

In the Linux kernel, the following vulnerability has been resolved: net: hns3: add VLAN id validation before using Currently, the VLAN id may be used without validation when receive a VLAN configuration mailbox from VF. The length of vlan_del_fail_bmap is BITS_TO_LONGS(VLAN_N_VID). It may cause out-of-bounds memory access once the VLAN id is bigger than or equal to VLAN_N_VID. Therefore, VLAN id needs to be checked to ensure it is within the range of VLAN_N_VID.

CVSS
7.1
EPSS
0.13%
2.96% percentile
CISA KEV
Not listed
Published
2026.01.15
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.13%
Technical severityCVSS 7.1

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: net: hns3: add VLAN id validation before using Currently, the VLAN id may be used without validation when receive a VLAN configuration mailbox from VF. The length of vlan_del_fail_bmap is BITS_TO_LONGS(VLAN_N_VID). It may cause out-of-bounds memory access once the VLAN id is bigger than or equal to VLAN_N_VID. Therefore, VLAN id needs to be checked to ensure it is within the range of VLAN_N_VID.

Affected product and versions

Product
Linux Linux, SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
Affected versions
>= fe4144d47eef8453459c53a34e9d5940a3e6c219 < 46c7d9fe8dd869ea5de666aba8c1ec1061ca44a8, >= fe4144d47eef8453459c53a34e9d5940a3e6c219 < 42c91dfa772c57de141e5a55a187ac760c0fd7e1, >= fe4144d47eef8453459c53a34e9d5940a3e6c219 < 00e56a7706e10b3d00a258d81fcb85a7e96372d6, >= fe4144d47eef8453459c53a34e9d5940a3e6c219 < b7b4f3bf118f51b67691a55b464f04452e5dc6fc, >= fe4144d47eef8453459c53a34e9d5940a3e6c219 < 95cca255a7a5ad782639ff0298c2a486707d1046, >= fe4144d47eef8453459c53a34e9d5940a3e6c219 < 91a51d01be5c9f82c12c2921ca5cceaa31b67128, >= fe4144d47eef8453459c53a34e9d5940a3e6c219 < 6ef935e65902bfed53980ad2754b06a284ea8ac1, >= 5.3, >= V3.1.6, >= 5.3.1 < 5.10.248, >= 5.11 < 5.15.198, >= 5.16 < 6.1.160, >= 6.2 < 6.6.120, >= 6.7 < 6.12.64, >= 6.13 < 6.18.3, 5.3, 6.19
Fixed versions
5.10.248, 5.15.198, 6.1.160, 6.6.120, 6.12.64, 6.18.3

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 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