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Review reviewHigh

CVE-2025-39969

Linux

In the Linux kernel, the following vulnerability has been resolved: i40e: fix validation of VF state in get resources VF state I40E_VF_STATE_ACTIVE is not the only state in which VF is actually active so it should not be used to determine if a VF is allowed to obtain resources. Use I40E_VF_STATE_RESOURCES_LOADED that is set only in i40e_vc_get_vf_resources_msg() and cleared during reset.

CVSS
8.8
EPSS
0.14%
4.16% percentile
CISA KEV
Not listed
Published
2025.10.15
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.14%
Technical severityCVSS 8.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: i40e: fix validation of VF state in get resources VF state I40E_VF_STATE_ACTIVE is not the only state in which VF is actually active so it should not be used to determine if a VF is allowed to obtain resources. Use I40E_VF_STATE_RESOURCES_LOADED that is set only in i40e_vc_get_vf_resources_msg() and cleared during reset.

Affected product and versions

Product
Linux
Affected versions
>= 171527da84149c2c7aa6a60a64b09d24f3546298 < 185745d56ec958bf8aa773828213237dfcc32f5a, >= eb87117c27e729b0aeef4d72ed40d6a1761b0f68 < f47876788a23de296c42ef9d505b5c1630f0b4b8, >= 2132643b956f553f5abddc9bae20dae267b082e0 < 8e35c80f8570426fe0f0cc92b151ebd835975f22, >= 61125b8be85dfbc7e9c7fe1cc6c6d631ab603516 < 6c3981fd59ef11a75005ac9978f034da5a168b6a, >= 61125b8be85dfbc7e9c7fe1cc6c6d631ab603516 < e748f1ee493f88e38b77363a60499f979d42c58a, >= 61125b8be85dfbc7e9c7fe1cc6c6d631ab603516 < 6128bbc7adc25c87c2f64b5eb66a280b78ef7ab7, >= 61125b8be85dfbc7e9c7fe1cc6c6d631ab603516 < a991dc56d3e9a2c3db87d0c3f03c24f6595400f1, >= 61125b8be85dfbc7e9c7fe1cc6c6d631ab603516 < 877b7e6ffc23766448236e8732254534c518ba42, >= 5.4.165 < 5.4.300, >= 5.10.85 < 5.10.245, >= 5.15.8 < 5.15.194, >= 5.16
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux 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:C/C:H/I:H/A:H
CWE
Not available