CVE-2026-98193 (GCVE-0-2026-98193)

Vulnerability from cvelistv5 – Published: 2026-10-06 08:44 – Updated: 2026-10-06 08:44
VLAI
Title
wifi: libipw: reject TKIP frames without a full MIC
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: libipw: reject TKIP frames without a full MIC libipw_michael_mic_verify() assumes that an skb contains an eight-byte Michael MIC. A short TKIP frame makes the unsigned payload length wrap, causing michael_mic() to read past the skb. Check that the MIC is present before verifying it, and use the existing MICHAEL_MIC_LEN constant for all MIC lengths in the verifier.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 54/100 over 6618 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: b453872c35cfcbdbf5a794737817f7d4e7b1b579 , < 9a7fb67364817710c96785ff86b71a2711ee92cb (git)
Affected: b453872c35cfcbdbf5a794737817f7d4e7b1b579 , < ac7c08626f67844336086cf563f417566b76f0d7 (git)
Affected: b453872c35cfcbdbf5a794737817f7d4e7b1b579 , < bb7ae8910cc886885aea95abb7c2e578a2341646 (git)
Affected: b453872c35cfcbdbf5a794737817f7d4e7b1b579 , < 06f42accaf3c6aecab1dcc57f68dde6c06c8b380 (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.14
Unaffected: 0 , < 2.6.14 (semver)
Unaffected: 6.12.112 , ≤ 6.12.* (semver)
Unaffected: 6.18.54 , ≤ 6.18.* (semver)
Unaffected: 7.2.8 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc4 , ≤ * (original_commit_for_fix)
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Show details on NVD website
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{
  "containers": {
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      "affected": [
        {
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          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/intel/ipw2x00/libipw_crypto_tkip.c"
          ],
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          "vendor": "Linux",
          "versions": [
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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\nwifi: libipw: reject TKIP frames without a full MIC\n\nlibipw_michael_mic_verify() assumes that an skb contains an eight-byte\nMichael MIC. A short TKIP frame makes the unsigned payload length wrap,\ncausing michael_mic() to read past the skb.\n\nCheck that the MIC is present before verifying it, and use the existing\nMICHAEL_MIC_LEN constant for all MIC lengths in the verifier."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-06T08:44:33.584Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/06f42accaf3c6aecab1dcc57f68dde6c06c8b380"
        }
      ],
      "title": "wifi: libipw: reject TKIP frames without a full MIC",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98193",
    "datePublished": "2026-10-06T08:44:33.584Z",
    "dateReserved": "2026-09-25T10:25:14.323Z",
    "dateUpdated": "2026-10-06T08:44:33.584Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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      "date": "2026-10-10",
      "epss": "0.00175",
      "percentile": "0.06452"
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    "nvd": {
      "cve": {
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                "defaultStatus": "unaffected",
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                "programFiles": [
                  "drivers/net/wireless/intel/ipw2x00/libipw_crypto_tkip.c"
                ],
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        "cveTags": [],
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          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libipw: reject TKIP frames without a full MIC\n\nlibipw_michael_mic_verify() assumes that an skb contains an eight-byte\nMichael MIC. A short TKIP frame makes the unsigned payload length wrap,\ncausing michael_mic() to read past the skb.\n\nCheck that the MIC is present before verifying it, and use the existing\nMICHAEL_MIC_LEN constant for all MIC lengths in the verifier."
          }
        ],
        "id": "CVE-2026-98193",
        "lastModified": "2026-10-06T09:18:04.670",
        "metrics": {},
        "published": "2026-10-06T09:18:04.670",
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      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-98193.json",
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    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.