Vulnerability-Lookup

FKIE_CVE-2026-43436

Vulnerability from fkie_nvd - Published: 2026-05-08 15:16 - Updated: 2026-05-21 17:43

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: ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces The Scarlett2 mixer quirk in USB-audio driver may hit a NULL dereference when a malformed USB descriptor is passed, since it assumes the presence of an endpoint in the parsed interface in scarlett2_find_fc_interface(), as reported by fuzzer. For avoiding the NULL dereference, just add the sanity check of bNumEndpoints and skip the invalid interface.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3d4f23885e4b90347c9a1d779af6e79a99b5172a	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3d542cf3c4c854cdf5d58049771f68926b9eb2b9	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b014cc945baba75816cda0cf8934be87c9ed4947	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b267255c15d2a5b90c4e926146aa155e5161e264	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c5c5a6c53cf3b658f1d4512dfa61f3cd25bc34ba	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/df1d8abf36ca3681c21a6809eaa9a1e01ef897a6	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0

JSON

To clipboard

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces\n\nThe Scarlett2 mixer quirk in USB-audio driver may hit a NULL\ndereference when a malformed USB descriptor is passed, since it\nassumes the presence of an endpoint in the parsed interface in\nscarlett2_find_fc_interface(), as reported by fuzzer.\n\nFor avoiding the NULL dereference, just add the sanity check of\nbNumEndpoints and skip the invalid interface."
    }
  ],
  "id": "CVE-2026-43436",
  "lastModified": "2026-05-21T17:43:14.380",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "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"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
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  "published": "2026-05-08T15:16:55.930",
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "value": "CWE-476"
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      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2026-43436 (GCVE-0-2026-43436)

Vulnerability from cvelistv5 – Published: 2026-05-08 14:22 – Updated: 2026-05-11 22:24

Title

ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces

Summary

Severity

No CVSS data available.

Assigner

Linux

References

6 references

URL	Tags
https://git.kernel.org/stable/c/b014cc945baba7581…
https://git.kernel.org/stable/c/c5c5a6c53cf3b658f…
https://git.kernel.org/stable/c/b267255c15d2a5b90…
https://git.kernel.org/stable/c/3d542cf3c4c854cdf…
https://git.kernel.org/stable/c/3d4f23885e4b90347…
https://git.kernel.org/stable/c/df1d8abf36ca3681c…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 6c0a2078134aba6a77291554035304df9e16b85c , < b014cc945baba75816cda0cf8934be87c9ed4947 (git) Affected: 6c0a2078134aba6a77291554035304df9e16b85c , < c5c5a6c53cf3b658f1d4512dfa61f3cd25bc34ba (git) Affected: 6c0a2078134aba6a77291554035304df9e16b85c , < b267255c15d2a5b90c4e926146aa155e5161e264 (git) Affected: 6c0a2078134aba6a77291554035304df9e16b85c , < 3d542cf3c4c854cdf5d58049771f68926b9eb2b9 (git) Affected: 6c0a2078134aba6a77291554035304df9e16b85c , < 3d4f23885e4b90347c9a1d779af6e79a99b5172a (git) Affected: 6c0a2078134aba6a77291554035304df9e16b85c , < df1d8abf36ca3681c21a6809eaa9a1e01ef897a6 (git)
Linux	Linux	Affected: 5.14 Unaffected: 0 , < 5.14 (semver) Unaffected: 6.1.167 , ≤ 6.1.* (semver) Unaffected: 6.6.130 , ≤ 6.6.* (semver) Unaffected: 6.12.78 , ≤ 6.12.* (semver) Unaffected: 6.18.19 , ≤ 6.18.* (semver) Unaffected: 6.19.9 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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          "programFiles": [
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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-2026-43436

CVE-2026-43436 (GCVE-0-2026-43436)

Tags

Sightings

Nomenclature