Vulnerability-Lookup

FKIE_CVE-2026-43281

Vulnerability from fkie_nvd - Published: 2026-05-06 12:16 - Updated: 2026-05-08 19:13

Severity ?

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

Summary

In the Linux kernel, the following vulnerability has been resolved: mailbox: Prevent out-of-bounds access in fw_mbox_index_xlate() Although it is guided that `#mbox-cells` must be at least 1, there are many instances of `#mbox-cells = <0>;` in the device tree. If that is the case and the corresponding mailbox controller does not provide `fw_xlate` and of_xlate` function pointers, `fw_mbox_index_xlate()` will be used by default and out-of-bounds accesses could occur due to lack of bounds check in that function.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/01d9a8c2615d436b2b30c19c1afe9fcd5726ff6d	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2662ed331a69c0b551f78af58f12eb629a89a36f	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/31c4c67dec3362094a6747a171a4848e98542265	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4caae8168d1b808c7d4ff481295292e3f97f90fb	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f50b39fd7c72a8734153644ee945ca0d8b2e65ab	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/fcd7f96c783626c07ee3ed75fa3739a8a2052310	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	3.18
linux	linux_kernel	3.18
linux	linux_kernel	3.18
linux	linux_kernel	3.18
linux	linux_kernel	3.18
linux	linux_kernel	3.18
linux	linux_kernel	3.18

JSON

To clipboard

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        {
          "cpeMatch": [
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    }
  ],
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  "lastModified": "2026-05-08T19:13:43.250",
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          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
          "version": "3.1"
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        "exploitabilityScore": 1.8,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
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  "vulnStatus": "Analyzed",
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}

CVE-2026-43281 (GCVE-0-2026-43281)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:29 – Updated: 2026-05-11 22:21

Title

mailbox: Prevent out-of-bounds access in fw_mbox_index_xlate()

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

6 references

URL	Tags
https://git.kernel.org/stable/c/2662ed331a69c0b55…
https://git.kernel.org/stable/c/31c4c67dec3362094…
https://git.kernel.org/stable/c/01d9a8c2615d436b2…
https://git.kernel.org/stable/c/4caae8168d1b808c7…
https://git.kernel.org/stable/c/f50b39fd7c72a8734…
https://git.kernel.org/stable/c/fcd7f96c783626c07…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 2b6d83e2b8b7de82331a6a1dcd64b51020a6031c , < 2662ed331a69c0b551f78af58f12eb629a89a36f (git) Affected: 2b6d83e2b8b7de82331a6a1dcd64b51020a6031c , < 31c4c67dec3362094a6747a171a4848e98542265 (git) Affected: 2b6d83e2b8b7de82331a6a1dcd64b51020a6031c , < 01d9a8c2615d436b2b30c19c1afe9fcd5726ff6d (git) Affected: 2b6d83e2b8b7de82331a6a1dcd64b51020a6031c , < 4caae8168d1b808c7d4ff481295292e3f97f90fb (git) Affected: 2b6d83e2b8b7de82331a6a1dcd64b51020a6031c , < f50b39fd7c72a8734153644ee945ca0d8b2e65ab (git) Affected: 2b6d83e2b8b7de82331a6a1dcd64b51020a6031c , < fcd7f96c783626c07ee3ed75fa3739a8a2052310 (git)
Linux	Linux	Affected: 3.18 Unaffected: 0 , < 3.18 (semver) Unaffected: 6.1.167 , ≤ 6.1.* (semver) Unaffected: 6.6.130 , ≤ 6.6.* (semver) Unaffected: 6.12.77 , ≤ 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

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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-2026-43281

CVE-2026-43281 (GCVE-0-2026-43281)

Tags

Sightings

Nomenclature