Vulnerability-Lookup

FKIE_CVE-2026-80931

Vulnerability from fkie_nvd - Published: 2026-09-11 20:18 - Updated: 2026-09-14 13:18

Severity

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

Summary

In the Linux kernel, the following vulnerability has been resolved: w1: ds28e17: reject an oversize length on an I2C block read w1_f19_i2c_master_transfer() is the master_xfer for the DS28E17 1-Wire to I2C bridge. On an I2C_M_RECV_LEN read, it takes the length from the device. The downstream slave puts a length byte in buf[0]. The driver then reads that many bytes into buf[1] with w1_f19_i2c_read(). buf[0] is controlled by the device and can be 0 to 255. w1_f19_i2c_read() only rejects a zero count. The caller buffer is I2C_SMBUS_BLOCK_MAX + 2, so 34 bytes. A length above 32 makes the read run past it, up to about 222 bytes out of bounds. The SMBus core does check buf[0] against I2C_SMBUS_BLOCK_MAX. That check runs after master_xfer returns. By then the write is already done. i2c-algo-bit rejects an oversize length before it copies, and returns -EPROTO. Reject a length above I2C_SMBUS_BLOCK_MAX at both RECV_LEN sites, the same way i2c-algo-bit does.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0f6496b34cc2919420f303b2aabdd9f71e084b56
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/169ae5e65e5aaf213b6a578f6478a9fd2e523606
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1d08877fc37e90945df38d255715bd1d6c052d46
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6df05f630c84a109736642362e452089886f9974
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ae0c79a8527044e54d81fd5a3b49ce6177633758
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b30c021c6073559ea6851b522d8a17a524a27b4a
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/bf76d61e118b7044600a65775a3bf8adc2c6823d
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/cb55c5da9828f77db2a2701316949d4de1e9b773

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/w1/slaves/w1_ds28e17.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b30c021c6073559ea6851b522d8a17a524a27b4a",
              "status": "affected",
              "version": "ebc4768ac4971eab4b570e733e47ac9dfd0e4175",
              "versionType": "git"
            },
            {
              "lessThan": "1d08877fc37e90945df38d255715bd1d6c052d46",
              "status": "affected",
              "version": "ebc4768ac4971eab4b570e733e47ac9dfd0e4175",
              "versionType": "git"
            },
            {
              "lessThan": "bf76d61e118b7044600a65775a3bf8adc2c6823d",
              "status": "affected",
              "version": "ebc4768ac4971eab4b570e733e47ac9dfd0e4175",
              "versionType": "git"
            },
            {
              "lessThan": "0f6496b34cc2919420f303b2aabdd9f71e084b56",
              "status": "affected",
              "version": "ebc4768ac4971eab4b570e733e47ac9dfd0e4175",
              "versionType": "git"
            },
            {
              "lessThan": "cb55c5da9828f77db2a2701316949d4de1e9b773",
              "status": "affected",
              "version": "ebc4768ac4971eab4b570e733e47ac9dfd0e4175",
              "versionType": "git"
            },
            {
              "lessThan": "ae0c79a8527044e54d81fd5a3b49ce6177633758",
              "status": "affected",
              "version": "ebc4768ac4971eab4b570e733e47ac9dfd0e4175",
              "versionType": "git"
            },
            {
              "lessThan": "6df05f630c84a109736642362e452089886f9974",
              "status": "affected",
              "version": "ebc4768ac4971eab4b570e733e47ac9dfd0e4175",
              "versionType": "git"
            },
            {
              "lessThan": "169ae5e65e5aaf213b6a578f6478a9fd2e523606",
              "status": "affected",
              "version": "ebc4768ac4971eab4b570e733e47ac9dfd0e4175",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/w1/slaves/w1_ds28e17.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.15"
            },
            {
              "lessThan": "4.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.109",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "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\nw1: ds28e17: reject an oversize length on an I2C block read\n\nw1_f19_i2c_master_transfer() is the master_xfer for the DS28E17 1-Wire\nto I2C bridge. On an I2C_M_RECV_LEN read, it takes the length from the\ndevice. The downstream slave puts a length byte in buf[0]. The driver\nthen reads that many bytes into buf[1] with w1_f19_i2c_read().\n\nbuf[0] is controlled by the device and can be 0 to 255.\nw1_f19_i2c_read() only rejects a zero count. The caller buffer is\nI2C_SMBUS_BLOCK_MAX + 2, so 34 bytes. A length above 32 makes the read\nrun past it, up to about 222 bytes out of bounds.\n\nThe SMBus core does check buf[0] against I2C_SMBUS_BLOCK_MAX. That\ncheck runs after master_xfer returns. By then the write is already\ndone. i2c-algo-bit rejects an oversize length before it copies, and\nreturns -EPROTO.\n\nReject a length above I2C_SMBUS_BLOCK_MAX at both RECV_LEN sites, the\nsame way i2c-algo-bit does."
    }
  ],
  "id": "CVE-2026-80931",
  "lastModified": "2026-09-14T13:18:49.327",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-09-11T20:18:56.893",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0f6496b34cc2919420f303b2aabdd9f71e084b56"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/169ae5e65e5aaf213b6a578f6478a9fd2e523606"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1d08877fc37e90945df38d255715bd1d6c052d46"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6df05f630c84a109736642362e452089886f9974"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ae0c79a8527044e54d81fd5a3b49ce6177633758"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b30c021c6073559ea6851b522d8a17a524a27b4a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bf76d61e118b7044600a65775a3bf8adc2c6823d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cb55c5da9828f77db2a2701316949d4de1e9b773"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

CVE-2026-80931 (GCVE-0-2026-80931)

Vulnerability from cvelistv5 – Published: 2026-09-11 19:42 – Updated: 2026-09-14 11:58

Title

w1: ds28e17: reject an oversize length on an I2C block read

Summary

Severity

7.8 (High)


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

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/b30c021c6073559ea…
https://git.kernel.org/stable/c/1d08877fc37e90945…
https://git.kernel.org/stable/c/bf76d61e118b70446…
https://git.kernel.org/stable/c/0f6496b34cc291942…
https://git.kernel.org/stable/c/cb55c5da9828f77db…
https://git.kernel.org/stable/c/ae0c79a8527044e54…
https://git.kernel.org/stable/c/6df05f630c84a1097…
https://git.kernel.org/stable/c/169ae5e65e5aaf213…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: ebc4768ac4971eab4b570e733e47ac9dfd0e4175 , < b30c021c6073559ea6851b522d8a17a524a27b4a (git) Affected: ebc4768ac4971eab4b570e733e47ac9dfd0e4175 , < 1d08877fc37e90945df38d255715bd1d6c052d46 (git) Affected: ebc4768ac4971eab4b570e733e47ac9dfd0e4175 , < bf76d61e118b7044600a65775a3bf8adc2c6823d (git) Affected: ebc4768ac4971eab4b570e733e47ac9dfd0e4175 , < 0f6496b34cc2919420f303b2aabdd9f71e084b56 (git) Affected: ebc4768ac4971eab4b570e733e47ac9dfd0e4175 , < cb55c5da9828f77db2a2701316949d4de1e9b773 (git) Affected: ebc4768ac4971eab4b570e733e47ac9dfd0e4175 , < ae0c79a8527044e54d81fd5a3b49ce6177633758 (git) Affected: ebc4768ac4971eab4b570e733e47ac9dfd0e4175 , < 6df05f630c84a109736642362e452089886f9974 (git) Affected: ebc4768ac4971eab4b570e733e47ac9dfd0e4175 , < 169ae5e65e5aaf213b6a578f6478a9fd2e523606 (git)
Linux	Linux	Affected: 4.15 Unaffected: 0 , < 4.15 (semver) Unaffected: 5.10.270 , ≤ 5.10.* (semver) Unaffected: 5.15.221 , ≤ 5.15.* (semver) Unaffected: 6.1.188 , ≤ 6.1.* (semver) Unaffected: 6.6.157 , ≤ 6.6.* (semver) Unaffected: 6.12.109 , ≤ 6.12.* (semver) Unaffected: 6.18.50 , ≤ 6.18.* (semver) Unaffected: 7.2.4 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/w1/slaves/w1_ds28e17.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b30c021c6073559ea6851b522d8a17a524a27b4a",
              "status": "affected",
              "version": "ebc4768ac4971eab4b570e733e47ac9dfd0e4175",
              "versionType": "git"
            },
            {
              "lessThan": "1d08877fc37e90945df38d255715bd1d6c052d46",
              "status": "affected",
              "version": "ebc4768ac4971eab4b570e733e47ac9dfd0e4175",
              "versionType": "git"
            },
            {
              "lessThan": "bf76d61e118b7044600a65775a3bf8adc2c6823d",
              "status": "affected",
              "version": "ebc4768ac4971eab4b570e733e47ac9dfd0e4175",
              "versionType": "git"
            },
            {
              "lessThan": "0f6496b34cc2919420f303b2aabdd9f71e084b56",
              "status": "affected",
              "version": "ebc4768ac4971eab4b570e733e47ac9dfd0e4175",
              "versionType": "git"
            },
            {
              "lessThan": "cb55c5da9828f77db2a2701316949d4de1e9b773",
              "status": "affected",
              "version": "ebc4768ac4971eab4b570e733e47ac9dfd0e4175",
              "versionType": "git"
            },
            {
              "lessThan": "ae0c79a8527044e54d81fd5a3b49ce6177633758",
              "status": "affected",
              "version": "ebc4768ac4971eab4b570e733e47ac9dfd0e4175",
              "versionType": "git"
            },
            {
              "lessThan": "6df05f630c84a109736642362e452089886f9974",
              "status": "affected",
              "version": "ebc4768ac4971eab4b570e733e47ac9dfd0e4175",
              "versionType": "git"
            },
            {
              "lessThan": "169ae5e65e5aaf213b6a578f6478a9fd2e523606",
              "status": "affected",
              "version": "ebc4768ac4971eab4b570e733e47ac9dfd0e4175",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/w1/slaves/w1_ds28e17.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.15"
            },
            {
              "lessThan": "4.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.109",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.270",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.221",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.188",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.157",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.109",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.50",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.4",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nw1: ds28e17: reject an oversize length on an I2C block read\n\nw1_f19_i2c_master_transfer() is the master_xfer for the DS28E17 1-Wire\nto I2C bridge. On an I2C_M_RECV_LEN read, it takes the length from the\ndevice. The downstream slave puts a length byte in buf[0]. The driver\nthen reads that many bytes into buf[1] with w1_f19_i2c_read().\n\nbuf[0] is controlled by the device and can be 0 to 255.\nw1_f19_i2c_read() only rejects a zero count. The caller buffer is\nI2C_SMBUS_BLOCK_MAX + 2, so 34 bytes. A length above 32 makes the read\nrun past it, up to about 222 bytes out of bounds.\n\nThe SMBus core does check buf[0] against I2C_SMBUS_BLOCK_MAX. That\ncheck runs after master_xfer returns. By then the write is already\ndone. i2c-algo-bit rejects an oversize length before it copies, and\nreturns -EPROTO.\n\nReject a length above I2C_SMBUS_BLOCK_MAX at both RECV_LEN sites, the\nsame way i2c-algo-bit does."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The overflow is reached from local userspace via /dev/i2c-* I2C_SMBUS or I2C_RDWR ioctls into w1_f19_i2c_master_transfer() on the DS28E17-created I2C adapter; i2c-dev does not require advertised I2C_FUNC_SMBUS_READ_BLOCK_DATA. There is no network path; the 1-Wire-to-I2C bridge being present is a deployment precondition.\nAC:L - A single I2C_M_RECV_LEN block read uses the downstream slave\u0027s first data byte as the extra length with no cap, then w1_f19_i2c_read() copies that many bytes. The attacker chooses the ioctl and target address; a responding slave returning \u003e32 (or data the attacker just wrote) overflows reliably, with no race or uncontrolled layout.\nPR:L - i2cdev_open() has no capability check; reachability depends only on /dev/i2c-* permissions, commonly 0660 root:i2c on embedded and industrial systems. That is unprivileged local access, not real init-namespace root.\nUI:N - The attacker triggers the bug with their own open/ioctl sequence on an already-present DS28E17 I2C adapter node. No victim action such as plugging in a device or mounting a filesystem is required.\nS:U - Impact is ordinary host-kernel stack or heap corruption of the SMBus/i2c-dev transfer buffer within the same kernel authority. It does not cross a VM, IOMMU, or other separate security boundary.\nC:H - A device-supplied length up to 255 causes an out-of-bounds write of about 222 bytes past the 34-byte I2C_SMBUS_BLOCK_MAX+2 buffer into adjacent kernel stack or heap. That memory corruption is defensibly leveraged for kernel information disclosure.\nI:H - Slave-controlled bytes are written past the end of the kernel transfer buffer, producing a substantial out-of-bounds kernel write. Such corruption is exploitable for arbitrary memory modification or control-flow hijacking.\nA:H - The out-of-bounds kernel write can corrupt heap or stack state and cause an oops, panic, or hang. The attacker can repeat the local ioctl to deny service."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-14T11:58:57.943Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b30c021c6073559ea6851b522d8a17a524a27b4a"
        },
        {
          "url": "https://git.kernel.org/stable/c/1d08877fc37e90945df38d255715bd1d6c052d46"
        },
        {
          "url": "https://git.kernel.org/stable/c/bf76d61e118b7044600a65775a3bf8adc2c6823d"
        },
        {
          "url": "https://git.kernel.org/stable/c/0f6496b34cc2919420f303b2aabdd9f71e084b56"
        },
        {
          "url": "https://git.kernel.org/stable/c/cb55c5da9828f77db2a2701316949d4de1e9b773"
        },
        {
          "url": "https://git.kernel.org/stable/c/ae0c79a8527044e54d81fd5a3b49ce6177633758"
        },
        {
          "url": "https://git.kernel.org/stable/c/6df05f630c84a109736642362e452089886f9974"
        },
        {
          "url": "https://git.kernel.org/stable/c/169ae5e65e5aaf213b6a578f6478a9fd2e523606"
        }
      ],
      "title": "w1: ds28e17: reject an oversize length on an I2C block read",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80931",
    "datePublished": "2026-09-11T19:42:06.272Z",
    "dateReserved": "2026-08-26T14:34:25.802Z",
    "dateUpdated": "2026-09-14T11:58:57.943Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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.