Vulnerability-Lookup

FKIE_CVE-2026-43221

Vulnerability from fkie_nvd - Published: 2026-05-06 12:16 - Updated: 2026-05-12 19:09

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: ipmi: ipmb: initialise event handler read bytes IPMB doesn't use i2c reads, but the handler needs to set a value. Otherwise an i2c read will return an uninitialised value from the bus driver.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/102712417bb6aa9a00d852bc59cb0a276db486c4	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2dfbc8c17dd161885336e77e71c336cd62cf6748	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/56d5c0557e53c4d8d92a619fa83eaae178165e07	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/905554ebd76aeee370bfd5136ea11e0b9d75c6f1	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9f235ccecd03c436cb1683eac16b12f119e54aa9	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f726b3a57e00bb6249c67714c11ae8b4b31719a1	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

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "6.1.165",
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              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "851E9353-6C09-4CC9-877E-E09DB164A3C2",
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              "versionStartIncluding": "6.2",
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            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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            },
            {
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              "vulnerable": true
            }
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          "negate": false,
          "operator": "OR"
        }
      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipmi: ipmb: initialise event handler read bytes\n\nIPMB doesn\u0027t use i2c reads, but the handler needs to set a value.\nOtherwise an i2c read will return an uninitialised value from the bus\ndriver."
    }
  ],
  "id": "CVE-2026-43221",
  "lastModified": "2026-05-12T19:09:12.717",
  "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"
      }
    ]
  },
  "published": "2026-05-06T12:16:41.780",
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
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    },
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-908"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2026-43221 (GCVE-0-2026-43221)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:28 – Updated: 2026-05-11 22:20

Title

ipmi: ipmb: initialise event handler read bytes

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

6 references

URL	Tags
https://git.kernel.org/stable/c/905554ebd76aeee37…
https://git.kernel.org/stable/c/56d5c0557e53c4d8d…
https://git.kernel.org/stable/c/2dfbc8c17dd161885…
https://git.kernel.org/stable/c/f726b3a57e00bb624…
https://git.kernel.org/stable/c/102712417bb6aa9a0…
https://git.kernel.org/stable/c/9f235ccecd03c436c…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 63c4eb347164845b380089012fe43992511c0ad3 , < 905554ebd76aeee370bfd5136ea11e0b9d75c6f1 (git) Affected: 63c4eb347164845b380089012fe43992511c0ad3 , < 56d5c0557e53c4d8d92a619fa83eaae178165e07 (git) Affected: 63c4eb347164845b380089012fe43992511c0ad3 , < 2dfbc8c17dd161885336e77e71c336cd62cf6748 (git) Affected: 63c4eb347164845b380089012fe43992511c0ad3 , < f726b3a57e00bb6249c67714c11ae8b4b31719a1 (git) Affected: 63c4eb347164845b380089012fe43992511c0ad3 , < 102712417bb6aa9a00d852bc59cb0a276db486c4 (git) Affected: 63c4eb347164845b380089012fe43992511c0ad3 , < 9f235ccecd03c436cb1683eac16b12f119e54aa9 (git)
Linux	Linux	Affected: 5.16 Unaffected: 0 , < 5.16 (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": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/char/ipmi/ipmi_ipmb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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          ]
        },
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        {
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      ],
      "title": "ipmi: ipmb: initialise event handler read bytes",
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    "datePublished": "2026-05-06T11:28:21.579Z",
    "dateReserved": "2026-05-01T14:12:55.994Z",
    "dateUpdated": "2026-05-11T22:20:20.815Z",
    "state": "PUBLISHED"
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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-2026-43221

CVE-2026-43221 (GCVE-0-2026-43221)

Tags

Sightings

Nomenclature