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EUVD-2026-353463

European Vulnerability Database identifier assigned by ENISA

Reserved

2026-10-02 08:24

Assigner

ENISA

Alias of

a CVE record, shown under related vulnerabilities. This identifier carries no description, severity or references of its own: they belong to that CVE.

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{
  "assigner": "ENISA",
  "date_reserved": "2026-10-02T08:24:12.355276+00:00",
  "id": "EUVD-2026-353463"
}

CVE-2026-68091 (GCVE-0-2026-68091)

Vulnerability from cvelistv5 – Published: 2026-08-10 11:51 – Updated: 2026-08-17 04:58

Title

HID: wacom: stop hardware after post-start probe failures

Summary

In the Linux kernel, the following vulnerability has been resolved: HID: wacom: stop hardware after post-start probe failures wacom_parse_and_register() starts HID hardware before registering inputs and initializing pad LEDs/remotes. Those later steps can fail, but their error paths currently release Wacom resources without stopping the HID hardware. Route post-hid_hw_start() failures through hid_hw_stop() before releasing driver resources. This issue was identified during our ongoing static-analysis research while reviewing kernel code.

Severity

8.8 (High)


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

Assigner

Linux mitre root Scorecard

References

8 references

URL	Tags
https://git.kernel.org/stable/c/5a7ca028facf04921…
https://git.kernel.org/stable/c/3e6473a4f0596182a…
https://git.kernel.org/stable/c/46d8b8c85ae0589fb…
https://git.kernel.org/stable/c/1a1ebdcb56ae58a0e…
https://git.kernel.org/stable/c/75eb2173b63ab41c2…
https://git.kernel.org/stable/c/416095e9a6037b4b3…
https://git.kernel.org/stable/c/e2cc711a9df37f359…
https://git.kernel.org/stable/c/ec2612b8ad9e64259…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: f304eb483393f135ab479d02da6f5dc7d9b51cd6 , < 5a7ca028facf04921b2c1c2e4d1ee7f282510555 (git) Affected: 853307924a9003b3142b5253b1caa6625fbad9fc , < 3e6473a4f0596182acdda5219b4bebfbee76514f (git) Affected: e5c6c8ef3e4d3a88407404daafbf2c6be62f2185 , < 46d8b8c85ae0589fb85746a64e8908160e52aac3 (git) Affected: fc41101a94b11cd0d5ad8e213b2b6965f248d653 , < 1a1ebdcb56ae58a0ee2c54dd15d75121e30424e3 (git) Affected: c1d6708bf0d3dd976460d435373cf5abf21ce258 , < 75eb2173b63ab41c24d80cd641af18f3c117a267 (git) Affected: c1d6708bf0d3dd976460d435373cf5abf21ce258 , < 416095e9a6037b4b39fcadd0d2bd77a8852211ec (git) Affected: c1d6708bf0d3dd976460d435373cf5abf21ce258 , < e2cc711a9df37f359159b21db56cea9c21f58a9c (git) Affected: c1d6708bf0d3dd976460d435373cf5abf21ce258 , < ec2612b8ad9e642596db011dd8b6568ef1edeaa1 (git) Affected: d943536197c1a05e377452af4ec7942e11d018f4 (git) Affected: dbaca8fa9ec2c5aa55ec515686ce3b9007554eab (git) Affected: 79187e8099a9feb550916dbfb962497522022b6d (git) Affected: 5.10.210 , < 5.10.261 (semver) Affected: 5.15.149 , < 5.15.212 (semver) Affected: 6.1.79 , < 6.1.178 (semver) Affected: 6.6.18 , < 6.6.145 (semver) Affected: 4.19.307 , < 4.20 (semver) Affected: 5.4.269 , < 5.5 (semver) Affected: 6.7.6 , < 6.8 (semver)
Linux	Linux	Affected: 6.8 Unaffected: 0 , < 6.8 (semver) Unaffected: 5.10.261 , ≤ 5.10.* (semver) Unaffected: 5.15.212 , ≤ 5.15.* (semver) Unaffected: 6.1.178 , ≤ 6.1.* (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.96 , ≤ 6.12.* (semver) Unaffected: 6.18.39 , ≤ 6.18.* (semver) Unaffected: 7.1.4 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/hid/wacom_sys.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5a7ca028facf04921b2c1c2e4d1ee7f282510555",
              "status": "affected",
              "version": "f304eb483393f135ab479d02da6f5dc7d9b51cd6",
              "versionType": "git"
            },
            {
              "lessThan": "3e6473a4f0596182acdda5219b4bebfbee76514f",
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              "version": "853307924a9003b3142b5253b1caa6625fbad9fc",
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            },
            {
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              "status": "affected",
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              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "fc41101a94b11cd0d5ad8e213b2b6965f248d653",
              "versionType": "git"
            },
            {
              "lessThan": "75eb2173b63ab41c24d80cd641af18f3c117a267",
              "status": "affected",
              "version": "c1d6708bf0d3dd976460d435373cf5abf21ce258",
              "versionType": "git"
            },
            {
              "lessThan": "416095e9a6037b4b39fcadd0d2bd77a8852211ec",
              "status": "affected",
              "version": "c1d6708bf0d3dd976460d435373cf5abf21ce258",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "c1d6708bf0d3dd976460d435373cf5abf21ce258",
              "versionType": "git"
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              "status": "affected",
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              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d943536197c1a05e377452af4ec7942e11d018f4",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "dbaca8fa9ec2c5aa55ec515686ce3b9007554eab",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "79187e8099a9feb550916dbfb962497522022b6d",
              "versionType": "git"
            },
            {
              "lessThan": "5.10.261",
              "status": "affected",
              "version": "5.10.210",
              "versionType": "semver"
            },
            {
              "lessThan": "5.15.212",
              "status": "affected",
              "version": "5.15.149",
              "versionType": "semver"
            },
            {
              "lessThan": "6.1.178",
              "status": "affected",
              "version": "6.1.79",
              "versionType": "semver"
            },
            {
              "lessThan": "6.6.145",
              "status": "affected",
              "version": "6.6.18",
              "versionType": "semver"
            },
            {
              "lessThan": "4.20",
              "status": "affected",
              "version": "4.19.307",
              "versionType": "semver"
            },
            {
              "lessThan": "5.5",
              "status": "affected",
              "version": "5.4.269",
              "versionType": "semver"
            },
            {
              "lessThan": "6.8",
              "status": "affected",
              "version": "6.7.6",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/hid/wacom_sys.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "lessThan": "6.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.96",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.39",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.261",
                  "versionStartIncluding": "5.10.210",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.212",
                  "versionStartIncluding": "5.15.149",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.1.79",
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                },
                {
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                  "vulnerable": true
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                {
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                  "versionStartIncluding": "6.8",
                  "vulnerable": true
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                {
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                {
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                },
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                }
              ],
              "negate": false,
              "operator": "OR"
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: wacom: stop hardware after post-start probe failures\n\nwacom_parse_and_register() starts HID hardware before registering inputs\nand initializing pad LEDs/remotes. Those later steps can fail, but their\nerror paths currently release Wacom resources without stopping the HID\nhardware.\n\nRoute post-hid_hw_start() failures through hid_hw_stop() before\nreleasing driver resources.\n\nThis issue was identified during our ongoing static-analysis research while\nreviewing kernel code."
        }
      ],
      "metrics": [
        {
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            "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 flaw is in the Wacom HID driver probe path reached when a Wacom-class HID device is connected; Bluetooth Wacom tablets are widely deployed and let an adjacent attacker deliver crafted HID traffic without USB port access.\nAC:L - A malicious or fuzzed Wacom HID device can steer probe through post-hid_hw_start() failure paths and the scheduled init_work, reliably leaving HID hardware active after driver teardown.\nPR:N - Exploitation requires only presenting a rogue Wacom HID device over Bluetooth or USB; no prior local account, capability, or namespace privilege on the victim host is needed.\nUI:N - No victim interaction is required beyond the attacker initiating device connection; probe failure and continued HID activity occur automatically on the kernel hotplug path.\nS:U - Impact is kernel memory corruption and privilege escalation within the host kernel, not crossing a VM, container, or IOMMU security boundary.\nC:H - Continued HID callbacks and delayed work after wacom_release_resources() create a use-after-free on freed driver allocations, enabling arbitrary kernel memory disclosure.\nI:H - The dangling hardware/workqueue activity against freed Wacom state is a heap use-after-free that can be leveraged for arbitrary kernel writes and code execution.\nA:H - Accessing freed probe resources from still-running HID hardware or init_work can cause kernel oops, panic, or hang, producing complete system denial of service."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T04:58:39.275Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5a7ca028facf04921b2c1c2e4d1ee7f282510555"
        },
        {
          "url": "https://git.kernel.org/stable/c/3e6473a4f0596182acdda5219b4bebfbee76514f"
        },
        {
          "url": "https://git.kernel.org/stable/c/46d8b8c85ae0589fb85746a64e8908160e52aac3"
        },
        {
          "url": "https://git.kernel.org/stable/c/1a1ebdcb56ae58a0ee2c54dd15d75121e30424e3"
        },
        {
          "url": "https://git.kernel.org/stable/c/75eb2173b63ab41c24d80cd641af18f3c117a267"
        },
        {
          "url": "https://git.kernel.org/stable/c/416095e9a6037b4b39fcadd0d2bd77a8852211ec"
        },
        {
          "url": "https://git.kernel.org/stable/c/e2cc711a9df37f359159b21db56cea9c21f58a9c"
        },
        {
          "url": "https://git.kernel.org/stable/c/ec2612b8ad9e642596db011dd8b6568ef1edeaa1"
        }
      ],
      "title": "HID: wacom: stop hardware after post-start probe failures",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-68091",
    "datePublished": "2026-08-10T11:51:46.683Z",
    "dateReserved": "2026-07-30T09:28:09.367Z",
    "dateUpdated": "2026-08-17T04:58:39.275Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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EUVD-2026-353463

CVE-2026-68091 (GCVE-0-2026-68091)

Tags

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Nomenclature

Related by attack behaviour