Vulnerability-Lookup

FKIE_CVE-2026-43140

Vulnerability from fkie_nvd - Published: 2026-05-06 12:16 - Updated: 2026-05-13 20:56

Severity ?

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

Summary

In the Linux kernel, the following vulnerability has been resolved: HID: magicmouse: Do not crash on missing msc->input Fake USB devices can send their own report descriptors for which the input_mapping() hook does not get called. In this case, msc->input stays NULL, leading to a crash at a later time. Detect this condition in the input_configured() hook and reject the device. This is not supposed to happen with actual magic mouse devices, but can be provoked by imposing as a magic mouse USB device.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/165912d4321c692321c02793068d30700b4e0f1a	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/17abd396548035fbd6179ee1a431bd75d49676a7	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/243e1165eb03aca97d87aafa9c3130593837a1c2	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/36c83c1329dd881f290f7df2feadfb9a21775108	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5bbe266272d86c0657e8253600f3d5b74fb7b2ae	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/922bd3e498a4b8e445def6e6ffea2ad3682ad516	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/db5ba06e7af9325519a03e52fccf4a9e7c1fd9b2	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f6a3860241fbb556fd72332fa31c5e787004413b	Patch

Impacted products

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

JSON

To clipboard

{
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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: magicmouse: Do not crash on missing msc-\u003einput\n\nFake USB devices can send their own report descriptors for which the\ninput_mapping() hook does not get called.  In this case, msc-\u003einput stays NULL,\nleading to a crash at a later time.\n\nDetect this condition in the input_configured() hook and reject the device.\n\nThis is not supposed to happen with actual magic mouse devices, but can be\nprovoked by imposing as a magic mouse USB device."
    }
  ],
  "id": "CVE-2026-43140",
  "lastModified": "2026-05-13T20:56:43.210",
  "metrics": {
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          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
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        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2026-43140 (GCVE-0-2026-43140)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:27 – Updated: 2026-05-11 22:18

Title

HID: magicmouse: Do not crash on missing msc->input

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/db5ba06e7af932551…
https://git.kernel.org/stable/c/165912d4321c69232…
https://git.kernel.org/stable/c/f6a3860241fbb556f…
https://git.kernel.org/stable/c/243e1165eb03aca97…
https://git.kernel.org/stable/c/922bd3e498a4b8e44…
https://git.kernel.org/stable/c/5bbe266272d86c065…
https://git.kernel.org/stable/c/36c83c1329dd881f2…
https://git.kernel.org/stable/c/17abd396548035fbd…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 64eb105d7f92fa48798106ac0d8bf17668eb2524 , < db5ba06e7af9325519a03e52fccf4a9e7c1fd9b2 (git) Affected: 64eb105d7f92fa48798106ac0d8bf17668eb2524 , < 165912d4321c692321c02793068d30700b4e0f1a (git) Affected: 64eb105d7f92fa48798106ac0d8bf17668eb2524 , < f6a3860241fbb556fd72332fa31c5e787004413b (git) Affected: 64eb105d7f92fa48798106ac0d8bf17668eb2524 , < 243e1165eb03aca97d87aafa9c3130593837a1c2 (git) Affected: 64eb105d7f92fa48798106ac0d8bf17668eb2524 , < 922bd3e498a4b8e445def6e6ffea2ad3682ad516 (git) Affected: 64eb105d7f92fa48798106ac0d8bf17668eb2524 , < 5bbe266272d86c0657e8253600f3d5b74fb7b2ae (git) Affected: 64eb105d7f92fa48798106ac0d8bf17668eb2524 , < 36c83c1329dd881f290f7df2feadfb9a21775108 (git) Affected: 64eb105d7f92fa48798106ac0d8bf17668eb2524 , < 17abd396548035fbd6179ee1a431bd75d49676a7 (git)
Linux	Linux	Affected: 2.6.37 Unaffected: 0 , < 2.6.37 (semver) Unaffected: 5.10.252 , ≤ 5.10.* (semver) Unaffected: 5.15.202 , ≤ 5.15.* (semver) Unaffected: 6.1.165 , ≤ 6.1.* (semver) Unaffected: 6.6.128 , ≤ 6.6.* (semver) Unaffected: 6.12.75 , ≤ 6.12.* (semver) Unaffected: 6.18.16 , ≤ 6.18.* (semver) Unaffected: 6.19.6 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/hid/hid-magicmouse.c"
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        }
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    "dateUpdated": "2026-05-11T22:18:31.955Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}

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.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-43140

CVE-2026-43140 (GCVE-0-2026-43140)

Tags

Sightings

Nomenclature