Vulnerability-Lookup

CVE-2026-63964 (GCVE-0-2026-63964)

Vulnerability from cvelistv5 – Published: 2026-07-19 14:55 – Updated: 2026-07-20 06:41

Title

usb: typec: ucsi: ccg: reject firmware images without a ':' record header

Summary

In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: ccg: reject firmware images without a ':' record header do_flash() locates the first .cyacd record with p = strnchr(fw->data, fw->size, ':'); while (p < eof) { s = strnchr(p + 1, eof - p - 1, ':'); ... } If the firmware image contains no ':' byte, strnchr() returns NULL. NULL compares less than the valid kernel pointer eof, so the loop body runs and strnchr() is called with p + 1 == (void *)1 and a length of roughly (unsigned long)eof, causing a wonderful crash. The not_signed_fw fallthrough earlier in do_flash() and the chip-state branches in ccg_fw_update_needed() allow an unsigned blob to reach this loop, so a root user who can place a crafted file under /lib/firmware and write the do_flash sysfs attribute can trigger the oops. Bail out with -EINVAL when the initial strnchr() returns NULL.

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 54/100 over 6624 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/b41dfc033fe594e15…
https://git.kernel.org/stable/c/2f395ca1263bd1819…
https://git.kernel.org/stable/c/6526f8684f7239113…
https://git.kernel.org/stable/c/3f432b8203066c267…
https://git.kernel.org/stable/c/c4ee519b06389e59b…
https://git.kernel.org/stable/c/a38ed87818b241909…
https://git.kernel.org/stable/c/c8460de584fe5415d…
https://git.kernel.org/stable/c/d7486952bf74e546e…

Impacted products

2 products

Vendor	Product	Version	CPE status
Linux	Linux	Affected: 5c9ae5a87573d38cfc4c740aafda2fa6ce06e401 , < b41dfc033fe594e152648050e95b9489cd53e9e3 (git) Affected: 5c9ae5a87573d38cfc4c740aafda2fa6ce06e401 , < 2f395ca1263bd181995eb829f5943a83a20db213 (git) Affected: 5c9ae5a87573d38cfc4c740aafda2fa6ce06e401 , < 6526f8684f72391138353642af908803ba70795e (git) Affected: 5c9ae5a87573d38cfc4c740aafda2fa6ce06e401 , < 3f432b8203066c26770fe6ea591361f10021dd6b (git) Affected: 5c9ae5a87573d38cfc4c740aafda2fa6ce06e401 , < c4ee519b06389e59ba2d6aa722fcc4a02a8bbcbb (git) Affected: 5c9ae5a87573d38cfc4c740aafda2fa6ce06e401 , < a38ed87818b2419090fb1a6338ddce6842b65dfa (git) Affected: 5c9ae5a87573d38cfc4c740aafda2fa6ce06e401 , < c8460de584fe5415d212cfdd127d4db90835a450 (git) Affected: 5c9ae5a87573d38cfc4c740aafda2fa6ce06e401 , < d7486952bf74e546ee3748fb14b2d07881fa6273 (git)	guessed
Linux	Linux	Affected: 5.2 Unaffected: 0 , < 5.2 (semver) Unaffected: 5.10.259 , ≤ 5.10.* (semver) Unaffected: 5.15.210 , ≤ 5.15.* (semver) Unaffected: 6.1.176 , ≤ 6.1.* (semver) Unaffected: 6.6.143 , ≤ 6.6.* (semver) Unaffected: 6.12.93 , ≤ 6.12.* (semver) Unaffected: 6.18.35 , ≤ 6.18.* (semver) Unaffected: 7.0.12 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)	guessed

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/typec/ucsi/ucsi_ccg.c"
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              "versionType": "git"
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          ],
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            },
            {
              "lessThan": "5.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "5.10.259",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.210",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.176",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "6.6.143",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.93",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "versionStartIncluding": "5.2",
                  "vulnerable": true
                },
                {
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                },
                {
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                },
                {
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                {
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                {
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                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "5.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: ucsi: ccg: reject firmware images without a \u0027:\u0027 record header\n\ndo_flash() locates the first .cyacd record with\n\n\tp = strnchr(fw-\u003edata, fw-\u003esize, \u0027:\u0027);\n\twhile (p \u003c eof) {\n\t\ts = strnchr(p + 1, eof - p - 1, \u0027:\u0027);\n\t\t...\n\t}\n\nIf the firmware image contains no \u0027:\u0027 byte,  strnchr() returns NULL.\nNULL compares less than the valid kernel pointer eof, so the loop body\nruns and strnchr() is called with p + 1 == (void *)1 and a length of\nroughly (unsigned long)eof, causing a wonderful crash.\n\nThe not_signed_fw fallthrough earlier in do_flash() and the chip-state\nbranches in ccg_fw_update_needed() allow an unsigned blob to reach this\nloop, so a root user who can place a crafted file under /lib/firmware\nand write the do_flash sysfs attribute can trigger the oops.\n\nBail out with -EINVAL when the initial strnchr() returns NULL."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-20T06:41:45.132Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b41dfc033fe594e152648050e95b9489cd53e9e3"
        },
        {
          "url": "https://git.kernel.org/stable/c/2f395ca1263bd181995eb829f5943a83a20db213"
        },
        {
          "url": "https://git.kernel.org/stable/c/6526f8684f72391138353642af908803ba70795e"
        },
        {
          "url": "https://git.kernel.org/stable/c/3f432b8203066c26770fe6ea591361f10021dd6b"
        },
        {
          "url": "https://git.kernel.org/stable/c/c4ee519b06389e59ba2d6aa722fcc4a02a8bbcbb"
        },
        {
          "url": "https://git.kernel.org/stable/c/a38ed87818b2419090fb1a6338ddce6842b65dfa"
        },
        {
          "url": "https://git.kernel.org/stable/c/c8460de584fe5415d212cfdd127d4db90835a450"
        },
        {
          "url": "https://git.kernel.org/stable/c/d7486952bf74e546ee3748fb14b2d07881fa6273"
        }
      ],
      "title": "usb: typec: ucsi: ccg: reject firmware images without a \u0027:\u0027 record header",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-63964",
    "datePublished": "2026-07-19T14:55:53.115Z",
    "dateReserved": "2026-07-19T07:54:57.024Z",
    "dateUpdated": "2026-07-20T06:41:45.132Z",
    "state": "PUBLISHED"
  },
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      "cve": "CVE-2026-63964",
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      "product_status:known_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "usb: typec: ucsi: ccg: reject firmware images without a \u0027:\u0027 record header",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-63964.json",
      "version": "1"
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    "nvd": {
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        "affected": [
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        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: ucsi: ccg: reject firmware images without a \u0027:\u0027 record header\n\ndo_flash() locates the first .cyacd record with\n\n\tp = strnchr(fw-\u003edata, fw-\u003esize, \u0027:\u0027);\n\twhile (p \u003c eof) {\n\t\ts = strnchr(p + 1, eof - p - 1, \u0027:\u0027);\n\t\t...\n\t}\n\nIf the firmware image contains no \u0027:\u0027 byte,  strnchr() returns NULL.\nNULL compares less than the valid kernel pointer eof, so the loop body\nruns and strnchr() is called with p + 1 == (void *)1 and a length of\nroughly (unsigned long)eof, causing a wonderful crash.\n\nThe not_signed_fw fallthrough earlier in do_flash() and the chip-state\nbranches in ccg_fw_update_needed() allow an unsigned blob to reach this\nloop, so a root user who can place a crafted file under /lib/firmware\nand write the do_flash sysfs attribute can trigger the oops.\n\nBail out with -EINVAL when the initial strnchr() returns NULL."
          }
        ],
        "id": "CVE-2026-63964",
        "lastModified": "2026-07-30T14:51:11.223",
        "metrics": {},
        "published": "2026-07-19T16:17:15.370",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/2f395ca1263bd181995eb829f5943a83a20db213"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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          {
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            "url": "https://git.kernel.org/stable/c/b41dfc033fe594e152648050e95b9489cd53e9e3"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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          },
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            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/c8460de584fe5415d212cfdd127d4db90835a450"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/d7486952bf74e546ee3748fb14b2d07881fa6273"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Awaiting Analysis"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-07-21T17:00:28+00:00",
      "cve": "CVE-2026-63964",
      "id": "CVE-2026-63964",
      "initial_release_date": "2026-07-19T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: usb: typec: ucsi: ccg: reject firmware images without a \u0027:\u0027 record header",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-63964.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-10-01T00:47:19Z",
      "cve": "CVE-2026-63964",
      "id": "CVE-2026-63964",
      "initial_release_date": "2026-07-21T13:02:37Z",
      "product_status:known_affected": "580",
      "product_status:known_not_affected": "143",
      "product_status:recommended": "250",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-63964",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-63964.json",
      "version": "12"
    }
  }
}

FKIE_CVE-2026-63964

Vulnerability from fkie_nvd - Published: 2026-07-19 16:17 - Updated: 2026-07-30 14:51

Severity

Summary

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2f395ca1263bd181995eb829f5943a83a20db213
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3f432b8203066c26770fe6ea591361f10021dd6b
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6526f8684f72391138353642af908803ba70795e
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a38ed87818b2419090fb1a6338ddce6842b65dfa
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b41dfc033fe594e152648050e95b9489cd53e9e3
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c4ee519b06389e59ba2d6aa722fcc4a02a8bbcbb
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c8460de584fe5415d212cfdd127d4db90835a450
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d7486952bf74e546ee3748fb14b2d07881fa6273

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/typec/ucsi/ucsi_ccg.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b41dfc033fe594e152648050e95b9489cd53e9e3",
              "status": "affected",
              "version": "5c9ae5a87573d38cfc4c740aafda2fa6ce06e401",
              "versionType": "git"
            },
            {
              "lessThan": "2f395ca1263bd181995eb829f5943a83a20db213",
              "status": "affected",
              "version": "5c9ae5a87573d38cfc4c740aafda2fa6ce06e401",
              "versionType": "git"
            },
            {
              "lessThan": "6526f8684f72391138353642af908803ba70795e",
              "status": "affected",
              "version": "5c9ae5a87573d38cfc4c740aafda2fa6ce06e401",
              "versionType": "git"
            },
            {
              "lessThan": "3f432b8203066c26770fe6ea591361f10021dd6b",
              "status": "affected",
              "version": "5c9ae5a87573d38cfc4c740aafda2fa6ce06e401",
              "versionType": "git"
            },
            {
              "lessThan": "c4ee519b06389e59ba2d6aa722fcc4a02a8bbcbb",
              "status": "affected",
              "version": "5c9ae5a87573d38cfc4c740aafda2fa6ce06e401",
              "versionType": "git"
            },
            {
              "lessThan": "a38ed87818b2419090fb1a6338ddce6842b65dfa",
              "status": "affected",
              "version": "5c9ae5a87573d38cfc4c740aafda2fa6ce06e401",
              "versionType": "git"
            },
            {
              "lessThan": "c8460de584fe5415d212cfdd127d4db90835a450",
              "status": "affected",
              "version": "5c9ae5a87573d38cfc4c740aafda2fa6ce06e401",
              "versionType": "git"
            },
            {
              "lessThan": "d7486952bf74e546ee3748fb14b2d07881fa6273",
              "status": "affected",
              "version": "5c9ae5a87573d38cfc4c740aafda2fa6ce06e401",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/typec/ucsi/ucsi_ccg.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.2"
            },
            {
              "lessThan": "5.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.259",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.210",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.176",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.143",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.93",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: ucsi: ccg: reject firmware images without a \u0027:\u0027 record header\n\ndo_flash() locates the first .cyacd record with\n\n\tp = strnchr(fw-\u003edata, fw-\u003esize, \u0027:\u0027);\n\twhile (p \u003c eof) {\n\t\ts = strnchr(p + 1, eof - p - 1, \u0027:\u0027);\n\t\t...\n\t}\n\nIf the firmware image contains no \u0027:\u0027 byte,  strnchr() returns NULL.\nNULL compares less than the valid kernel pointer eof, so the loop body\nruns and strnchr() is called with p + 1 == (void *)1 and a length of\nroughly (unsigned long)eof, causing a wonderful crash.\n\nThe not_signed_fw fallthrough earlier in do_flash() and the chip-state\nbranches in ccg_fw_update_needed() allow an unsigned blob to reach this\nloop, so a root user who can place a crafted file under /lib/firmware\nand write the do_flash sysfs attribute can trigger the oops.\n\nBail out with -EINVAL when the initial strnchr() returns NULL."
    }
  ],
  "id": "CVE-2026-63964",
  "lastModified": "2026-07-30T14:51:11.223",
  "metrics": {},
  "published": "2026-07-19T16:17:15.370",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2f395ca1263bd181995eb829f5943a83a20db213"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3f432b8203066c26770fe6ea591361f10021dd6b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6526f8684f72391138353642af908803ba70795e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a38ed87818b2419090fb1a6338ddce6842b65dfa"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b41dfc033fe594e152648050e95b9489cd53e9e3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c4ee519b06389e59ba2d6aa722fcc4a02a8bbcbb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c8460de584fe5415d212cfdd127d4db90835a450"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d7486952bf74e546ee3748fb14b2d07881fa6273"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

GHSA-7W55-P3P4-26MV

Vulnerability from github – Published: 2026-07-19 18:31 – Updated: 2026-07-19 18:31

Details

In the Linux kernel, the following vulnerability has been resolved:

usb: typec: ucsi: ccg: reject firmware images without a ':' record header

do_flash() locates the first .cyacd record with

p = strnchr(fw->data, fw->size, ':');
while (p < eof) {
    s = strnchr(p + 1, eof - p - 1, ':');
    ...
}

If the firmware image contains no ':' byte, strnchr() returns NULL. NULL compares less than the valid kernel pointer eof, so the loop body runs and strnchr() is called with p + 1 == (void *)1 and a length of roughly (unsigned long)eof, causing a wonderful crash.

The not_signed_fw fallthrough earlier in do_flash() and the chip-state branches in ccg_fw_update_needed() allow an unsigned blob to reach this loop, so a root user who can place a crafted file under /lib/firmware and write the do_flash sysfs attribute can trigger the oops.

Bail out with -EINVAL when the initial strnchr() returns NULL.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-63964"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-19T16:17:15Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: ucsi: ccg: reject firmware images without a \u0027:\u0027 record header\n\ndo_flash() locates the first .cyacd record with\n\n\tp = strnchr(fw-\u003edata, fw-\u003esize, \u0027:\u0027);\n\twhile (p \u003c eof) {\n\t\ts = strnchr(p + 1, eof - p - 1, \u0027:\u0027);\n\t\t...\n\t}\n\nIf the firmware image contains no \u0027:\u0027 byte,  strnchr() returns NULL.\nNULL compares less than the valid kernel pointer eof, so the loop body\nruns and strnchr() is called with p + 1 == (void *)1 and a length of\nroughly (unsigned long)eof, causing a wonderful crash.\n\nThe not_signed_fw fallthrough earlier in do_flash() and the chip-state\nbranches in ccg_fw_update_needed() allow an unsigned blob to reach this\nloop, so a root user who can place a crafted file under /lib/firmware\nand write the do_flash sysfs attribute can trigger the oops.\n\nBail out with -EINVAL when the initial strnchr() returns NULL.",
  "id": "GHSA-7w55-p3p4-26mv",
  "modified": "2026-07-19T18:31:48Z",
  "published": "2026-07-19T18:31:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63964"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2f395ca1263bd181995eb829f5943a83a20db213"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3f432b8203066c26770fe6ea591361f10021dd6b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6526f8684f72391138353642af908803ba70795e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a38ed87818b2419090fb1a6338ddce6842b65dfa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b41dfc033fe594e152648050e95b9489cd53e9e3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c4ee519b06389e59ba2d6aa722fcc4a02a8bbcbb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c8460de584fe5415d212cfdd127d4db90835a450"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d7486952bf74e546ee3748fb14b2d07881fa6273"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

MSRC_CVE-2026-63964

Vulnerability from csaf_microsoft - Published: 2026-07-21 01:03 - Updated: 2026-07-21 01:03

Summary

usb: typec: ucsi: ccg: reject firmware images without a ':' record header

Scope

1 vulnerability in this advisory, including CVE-2026-63964.

CVE-2026-63964

Known affected: 1 product

Open the full advisory

OPENSUSE-SU-2026:21555-1

Vulnerability from csaf_opensuse - Published: 2026-08-12 01:09 - Updated: 2026-09-30 11:19

Summary

Security update for the Linux Kernel

Severity

Important

Scope

894 vulnerabilities in this advisory, including CVE-2026-63964.

CVE-2026-63964

4.4 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Recommended: 136 products

Open the full advisory

SUSE-SU-2026:23066-1

Vulnerability from csaf_suse - Published: 2026-08-11 20:56 - Updated: 2026-09-30 11:15

Summary

Security update for the Linux Kernel

Severity

Important

Scope

894 vulnerabilities in this advisory, including CVE-2026-63964.

CVE-2026-63964

4.4 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Recommended: 8 products

Open the full advisory

SUSE-SU-2026:23068-1

Vulnerability from csaf_suse - Published: 2026-08-11 21:26 - Updated: 2026-09-30 11:15

Summary

Security update for the Linux Kernel

Severity

Important

Scope

894 vulnerabilities in this advisory, including CVE-2026-63964.

CVE-2026-63964

4.4 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Recommended: 28 products

Open the full advisory

SUSE-SU-2026:23193-1

Vulnerability from csaf_suse - Published: 2026-08-18 18:56 - Updated: 2026-10-07 10:19

Summary

Security update for the Linux Kernel

Severity

Important

Scope

648 vulnerabilities in this advisory, including CVE-2026-63964.

CVE-2026-63964

4.4 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Recommended: 7 products

Open the full advisory

SUSE-SU-2026:23194-1

Vulnerability from csaf_suse - Published: 2026-08-18 19:48 - Updated: 2026-10-07 10:19

Summary

Security update for the Linux Kernel

Severity

Important

Scope

647 vulnerabilities in this advisory, including CVE-2026-63964.

CVE-2026-63964

4.4 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Recommended: 14 products

Open the full advisory

SUSE-SU-2026:23221-1

Vulnerability from csaf_suse - Published: 2026-08-11 21:26 - Updated: 2026-09-30 11:15

Summary

Security update for the Linux Kernel

Severity

Important

Scope

894 vulnerabilities in this advisory, including CVE-2026-63964.

CVE-2026-63964

4.4 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Recommended: 114 products

Open the full advisory

SUSE-SU-2026:23231-1

Vulnerability from csaf_suse - Published: 2026-08-11 21:26 - Updated: 2026-09-30 11:15

Summary

Security update for the Linux Kernel

Severity

Important

Scope

894 vulnerabilities in this advisory, including CVE-2026-63964.

CVE-2026-63964

4.4 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Recommended: 114 products

Open the full advisory

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.

Action not permitted

CVE-2026-63964 (GCVE-0-2026-63964)

Tags

Sightings

Nomenclature

Related by attack behaviour