CVE-2026-98193

Status: ReceivedUnscored—

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.

CVSS

NVD hasn't assigned a CVSS score to this CVE (common since the April 2026 policy change).

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.18%
Percentile among all scored CVEs: 6
Score date: 10/6/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Linux — Linux Kernel^AI

References

Raw JSON (NVD)

Show

{
  "id": "CVE-2026-98193",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "b453872c35cfcbdbf5a794737817f7d4e7b1b579",
              "lessThan": "9a7fb67364817710c96785ff86b71a2711ee92cb",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b453872c35cfcbdbf5a794737817f7d4e7b1b579",
              "lessThan": "ac7c08626f67844336086cf563f417566b76f0d7",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b453872c35cfcbdbf5a794737817f7d4e7b1b579",
              "lessThan": "bb7ae8910cc886885aea95abb7c2e578a2341646",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b453872c35cfcbdbf5a794737817f7d4e7b1b579",
              "lessThan": "06f42accaf3c6aecab1dcc57f68dde6c06c8b380",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/wireless/intel/ipw2x00/libipw_crypto_tkip.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.14"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "2.6.14",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.54",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.8",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc4",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/wireless/intel/ipw2x00/libipw_crypto_tkip.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-10-06T09:18:04.670",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/06f42accaf3c6aecab1dcc57f68dde6c06c8b380",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9a7fb67364817710c96785ff86b71a2711ee92cb",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ac7c08626f67844336086cf563f417566b76f0d7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/bb7ae8910cc886885aea95abb7c2e578a2341646",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "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."
    }
  ],
  "lastModified": "2026-10-06T09:18:04.670",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}