Vulnerability-Lookup

FKIE_CVE-2026-46125

Vulnerability from fkie_nvd - Published: 2026-05-28 10:16 - Updated: 2026-07-15 02:22

Severity

8.8 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.8 (Medium) - CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: remove station if connection prep fails If connection preparation fails for MLO connections, then the interface is completely reset to non-MLD. In this case, we must not keep the station since it's related to the link of the vif being removed. Delete an existing station. Any "new_sta" is already being removed, so that doesn't need changes. This fixes a use-after-free/double-free in debugfs if that's enabled, because a vif going from MLD (and to MLD, but that's not relevant here) recreates its entire debugfs.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/18fed0a209500bfea5c4c08609ec93855e4e500b	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1c2b72ea89882aeb948340498391e69c58d466f1	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/283fc9e44ff5b5ac967439b4951b80bd4299f4e4	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9e28654f79f443bca9b29ff3ae7cf18abfba58a0	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/afcbaed89cdc1a001b43270cbf5394bb4804270a	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/fe75fa1ac9a92990f7fc3d34b17808fd933071b2	Patch
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:26427
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:26428
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:26462
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:26515
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:26563
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:27288
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:27708
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:27731
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:27735
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:27789
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/security/cve/CVE-2026-46125
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://bugzilla.redhat.com/show_bug.cgi?id=2482608
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46125.json

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	7.1
linux	linux_kernel	7.1

JSON

To clipboard

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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: remove station if connection prep fails\n\nIf connection preparation fails for MLO connections, then the\ninterface is completely reset to non-MLD. In this case, we must\nnot keep the station since it\u0027s related to the link of the vif\nbeing removed. Delete an existing station. Any \"new_sta\" is\nalready being removed, so that doesn\u0027t need changes.\n\nThis fixes a use-after-free/double-free in debugfs if that\u0027s\nenabled, because a vif going from MLD (and to MLD, but that\u0027s\nnot relevant here) recreates its entire debugfs."
    }
  ],
  "id": "CVE-2026-46125",
  "lastModified": "2026-07-15T02:22:10.677",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
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          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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          "confidentialityImpact": "HIGH",
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  "published": "2026-05-28T10:16:28.047",
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}

CVE-2026-46125 (GCVE-0-2026-46125)

Vulnerability from cvelistv5 – Published: 2026-05-28 09:35 – Updated: 2026-08-05 12:29

Title

wifi: mac80211: remove station if connection prep fails

Summary

Severity

8.8 (High)


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

6.8 (Medium)


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

CWE

CWE-825 - Expired Pointer Dereference

Assigner

Linux mitre root Scorecard

References

19 references

URL	Tags
https://git.kernel.org/stable/c/18fed0a209500bfea…
https://git.kernel.org/stable/c/fe75fa1ac9a92990f…
https://git.kernel.org/stable/c/afcbaed89cdc1a001…
https://git.kernel.org/stable/c/9e28654f79f443bca…
https://git.kernel.org/stable/c/1c2b72ea89882aeb9…
https://git.kernel.org/stable/c/283fc9e44ff5b5ac9…
https://access.redhat.com/security/cve/CVE-2026-46125	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2482608	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:27731	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:27288	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26515	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:27735	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:27708	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:27789	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26427	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26563	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26428	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26462	vendor-advisoryx_refsource_REDHAT

Impacted products

16 products

Vendor	Product	Version
Linux	Linux	Affected: 81151ce462e533551f3284bfdb8e0f461c9220e6 , < 18fed0a209500bfea5c4c08609ec93855e4e500b (git) Affected: 81151ce462e533551f3284bfdb8e0f461c9220e6 , < fe75fa1ac9a92990f7fc3d34b17808fd933071b2 (git) Affected: 81151ce462e533551f3284bfdb8e0f461c9220e6 , < afcbaed89cdc1a001b43270cbf5394bb4804270a (git) Affected: 81151ce462e533551f3284bfdb8e0f461c9220e6 , < 9e28654f79f443bca9b29ff3ae7cf18abfba58a0 (git) Affected: 81151ce462e533551f3284bfdb8e0f461c9220e6 , < 1c2b72ea89882aeb948340498391e69c58d466f1 (git) Affected: 81151ce462e533551f3284bfdb8e0f461c9220e6 , < 283fc9e44ff5b5ac967439b4951b80bd4299f4e4 (git)
Linux	Linux	Affected: 6.0 Unaffected: 0 , < 6.0 (semver) Unaffected: 6.1.176 , ≤ 6.1.* (semver) Unaffected: 6.6.140 , ≤ 6.6.* (semver) Unaffected: 6.12.88 , ≤ 6.12.* (semver) Unaffected: 6.18.30 , ≤ 6.18.* (semver) Unaffected: 7.0.7 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:6.12.0-211.26.1.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	Unaffected: 0:6.12.0-55.82.1.el10_0 , < * (rpm) cpe:/o:redhat:enterprise_linux_eus:10.0
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:4.18.0-553.134.1.rt7.475.el8_10 , < * (rpm) cpe:/a:redhat:enterprise_linux:8::nfv
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:4.18.0-553.134.1.el8_10 , < * (rpm) cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service	Unaffected: 0:4.18.0-477.147.1.el8_8 , < * (rpm) cpe:/o:redhat:rhel_tus:8.8
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	Unaffected: 0:4.18.0-477.147.1.el8_8 , < * (rpm) cpe:/o:redhat:rhel_e4s:8.8
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:5.14.0-687.17.1.el9_8 , < * (rpm) cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	Unaffected: 0:5.14.0-284.176.1.el9_2 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.2
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	Unaffected: 0:5.14.0-284.176.1.rt14.461.el9_2 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.2::nfv
Red Hat	Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions	Unaffected: 0:5.14.0-427.132.1.el9_4 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.4
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	Unaffected: 0:5.14.0-570.123.1.el9_6 , < * (rpm) cpe:/a:redhat:rhel_eus:9.6
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9

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              "lessThan": "afcbaed89cdc1a001b43270cbf5394bb4804270a",
              "status": "affected",
              "version": "81151ce462e533551f3284bfdb8e0f461c9220e6",
              "versionType": "git"
            },
            {
              "lessThan": "9e28654f79f443bca9b29ff3ae7cf18abfba58a0",
              "status": "affected",
              "version": "81151ce462e533551f3284bfdb8e0f461c9220e6",
              "versionType": "git"
            },
            {
              "lessThan": "1c2b72ea89882aeb948340498391e69c58d466f1",
              "status": "affected",
              "version": "81151ce462e533551f3284bfdb8e0f461c9220e6",
              "versionType": "git"
            },
            {
              "lessThan": "283fc9e44ff5b5ac967439b4951b80bd4299f4e4",
              "status": "affected",
              "version": "81151ce462e533551f3284bfdb8e0f461c9220e6",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/mac80211/mlme.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.0"
            },
            {
              "lessThan": "6.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.176",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.140",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.88",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.30",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.176",
                  "versionStartIncluding": "6.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.140",
                  "versionStartIncluding": "6.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.88",
                  "versionStartIncluding": "6.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.30",
                  "versionStartIncluding": "6.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.7",
                  "versionStartIncluding": "6.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "6.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: remove station if connection prep fails\n\nIf connection preparation fails for MLO connections, then the\ninterface is completely reset to non-MLD. In this case, we must\nnot keep the station since it\u0027s related to the link of the vif\nbeing removed. Delete an existing station. Any \"new_sta\" is\nalready being removed, so that doesn\u0027t need changes.\n\nThis fixes a use-after-free/double-free in debugfs if that\u0027s\nenabled, because a vif going from MLD (and to MLD, but that\u0027s\nnot relevant here) recreates its entire debugfs."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:A - The bug is in mac80211 station-side MLME, triggered by a malicious/rogue AP that the station attempts an MLO association with; WiFi requires the attacker to be within radio range (same wireless segment).\nAC:L - A rogue AP can reliably let authentication create the station and then craft association/channel parameters that fail connection prep on the MLO path, repeatably; the required CONFIG_MAC80211_DEBUGFS is commonly enabled.\nPR:N - 802.11 authentication/association management frames are processed before any credential proof (4-way handshake/SAE), so a rogue AP reaches this path without holding any credentials on the victim.\nUI:N - Stations auto-reconnect to saved networks, so an attacker spoofing a known SSID drives the connection (and the failing MLO assoc) with no user action.\nS:U - The corruption stays within the kernel\u0027s own memory/security authority with no boundary crossing such as VM or IOMMU escape.\nC:H - A use-after-free over the freed station/link-debugfs objects can be leveraged for attacker-controlled reads of kernel memory.\nI:H - The use-after-free/double-free enables heap grooming and write primitives that can corrupt adjacent kernel state and hijack control flow.\nA:H - The use-after-free/double-free reliably causes kernel oops/panic, a full denial of service."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:29:54.918Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/18fed0a209500bfea5c4c08609ec93855e4e500b"
        },
        {
          "url": "https://git.kernel.org/stable/c/fe75fa1ac9a92990f7fc3d34b17808fd933071b2"
        },
        {
          "url": "https://git.kernel.org/stable/c/afcbaed89cdc1a001b43270cbf5394bb4804270a"
        },
        {
          "url": "https://git.kernel.org/stable/c/9e28654f79f443bca9b29ff3ae7cf18abfba58a0"
        },
        {
          "url": "https://git.kernel.org/stable/c/1c2b72ea89882aeb948340498391e69c58d466f1"
        },
        {
          "url": "https://git.kernel.org/stable/c/283fc9e44ff5b5ac967439b4951b80bd4299f4e4"
        }
      ],
      "title": "wifi: mac80211: remove station if connection prep fails",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46125",
    "datePublished": "2026-05-28T09:35:39.809Z",
    "dateReserved": "2026-05-13T15:03:33.099Z",
    "dateUpdated": "2026-08-05T12:29:54.918Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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FKIE_CVE-2026-46125

CVE-2026-46125 (GCVE-0-2026-46125)

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Sightings

Nomenclature

Related by attack behaviour