Vulnerability-Lookup

CVE-2025-40080 (GCVE-0-2025-40080)

Vulnerability from cvelistv5 – Published: 2025-10-28 11:48 – Updated: 2026-09-08 08:42

Title

nbd: restrict sockets to TCP and UDP

Summary

In the Linux kernel, the following vulnerability has been resolved: nbd: restrict sockets to TCP and UDP Recently, syzbot started to abuse NBD with all kinds of sockets. Commit cf1b2326b734 ("nbd: verify socket is supported during setup") made sure the socket supported a shutdown() method. Explicitely accept TCP and UNIX stream sockets.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

6 references

URL	Tags
https://git.kernel.org/stable/c/c365e8f20f4201d87…
https://git.kernel.org/stable/c/4f9e6ff6319dbcebe…
https://git.kernel.org/stable/c/37ad11f20e164c23c…
https://git.kernel.org/stable/c/808e2335bc1cf2293…
https://git.kernel.org/stable/c/9f7c02e031570e829…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

5 products

Vendor	Product	Version	CPE status
Linux	Linux	Affected: cf1b2326b734896734c6e167e41766f9cee7686a , < c365e8f20f4201d873a70385bd919f0fb531e960 (git) Affected: cf1b2326b734896734c6e167e41766f9cee7686a , < 4f9e6ff6319dbcebea64b50af0304cf0ad7e97e7 (git) Affected: cf1b2326b734896734c6e167e41766f9cee7686a , < 37ad11f20e164c23ce827dd455b42c0fdd29685c (git) Affected: cf1b2326b734896734c6e167e41766f9cee7686a , < 808e2335bc1cf2293b9e36ccc94c267c81509c71 (git) Affected: cf1b2326b734896734c6e167e41766f9cee7686a , < 9f7c02e031570e8291a63162c6c046dc15ff85b0 (git) Affected: 4df728651b8a99693c69962d8e5a5b9e5a3bbcc7 (git) Affected: 083322455c67d278c56a66b73f1221f004ee600a (git) Affected: 4fa1cbd587ef967812f9d9f6ce46ec1dead7502c (git) Affected: 4.14.152 , < 4.15 (semver) Affected: 4.19.82 , < 4.20 (semver) Affected: 5.3.9 , < 5.4 (semver)	guessed
Linux	Linux	Affected: 5.4 Unaffected: 0 , < 5.4 (semver) Unaffected: 6.1.156 , ≤ 6.1.* (semver) Unaffected: 6.6.112 , ≤ 6.6.* (semver) Unaffected: 6.12.53 , ≤ 6.12.* (semver) Unaffected: 6.17.3 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix)	guessed
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.6 , < * (custom)	guessed
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	Affected: V3.1.6 , < * (custom)	guessed
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.6 , < * (custom)	guessed

Show details on NVD website

JSON

To clipboard

{
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            "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
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              "versionType": "semver"
            },
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              "version": "6.6.112",
              "versionType": "semver"
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              "version": "6.12.53",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "6.17.3",
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            },
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              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
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          "nodes": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
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                },
                {
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                  "versionEndExcluding": "6.18",
                  "versionStartIncluding": "5.4",
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                },
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    "dateReserved": "2025-04-16T07:20:57.160Z",
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    "redhat_vex": {
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      "current_release_date": "2026-06-30T10:17:54+00:00",
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      "id": "CVE-2025-40080",
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      "product_status:known_affected": "246",
      "product_status:known_not_affected": "28",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: nbd: restrict sockets to TCP and UDP",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-40080.json",
      "version": "3"
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}

FKIE_CVE-2025-40080

Vulnerability from fkie_nvd - Published: 2025-10-28 12:15 - Updated: 2026-07-14 13:17

Severity

Summary

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/37ad11f20e164c23ce827dd455b42c0fdd29685c
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4f9e6ff6319dbcebea64b50af0304cf0ad7e97e7
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/808e2335bc1cf2293b9e36ccc94c267c81509c71
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9f7c02e031570e8291a63162c6c046dc15ff85b0
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c365e8f20f4201d873a70385bd919f0fb531e960
	0b142b55-0307-4c5a-b3c9-f314f3fb7c5e	https://cert-portal.siemens.com/productcert/html/ssa-019113.html

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/block/nbd.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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            {
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            },
            {
              "lessThan": "808e2335bc1cf2293b9e36ccc94c267c81509c71",
              "status": "affected",
              "version": "cf1b2326b734896734c6e167e41766f9cee7686a",
              "versionType": "git"
            },
            {
              "lessThan": "9f7c02e031570e8291a63162c6c046dc15ff85b0",
              "status": "affected",
              "version": "cf1b2326b734896734c6e167e41766f9cee7686a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4df728651b8a99693c69962d8e5a5b9e5a3bbcc7",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "083322455c67d278c56a66b73f1221f004ee600a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4fa1cbd587ef967812f9d9f6ce46ec1dead7502c",
              "versionType": "git"
            },
            {
              "lessThan": "4.15",
              "status": "affected",
              "version": "4.14.152",
              "versionType": "semver"
            },
            {
              "lessThan": "4.20",
              "status": "affected",
              "version": "4.19.82",
              "versionType": "semver"
            },
            {
              "lessThan": "5.4",
              "status": "affected",
              "version": "5.3.9",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/block/nbd.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.4"
            },
            {
              "lessThan": "5.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.156",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.112",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.53",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "affectedData": [
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "V3.1.6",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "V3.1.6",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "V3.1.6",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "V3.1.6",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "V3.1.6",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnbd: restrict sockets to TCP and UDP\n\nRecently, syzbot started to abuse NBD with all kinds of sockets.\n\nCommit cf1b2326b734 (\"nbd: verify socket is supported during setup\")\nmade sure the socket supported a shutdown() method.\n\nExplicitely accept TCP and UNIX stream sockets."
    }
  ],
  "id": "CVE-2025-40080",
  "lastModified": "2026-07-14T13:17:52.883",
  "metrics": {},
  "published": "2025-10-28T12:15:42.587",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/37ad11f20e164c23ce827dd455b42c0fdd29685c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4f9e6ff6319dbcebea64b50af0304cf0ad7e97e7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/808e2335bc1cf2293b9e36ccc94c267c81509c71"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9f7c02e031570e8291a63162c6c046dc15ff85b0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c365e8f20f4201d873a70385bd919f0fb531e960"
    },
    {
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}

GHSA-MP9C-X94P-8JH7

Vulnerability from github – Published: 2025-10-28 12:30 – Updated: 2026-07-14 15:31

Details

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

nbd: restrict sockets to TCP and UDP

Recently, syzbot started to abuse NBD with all kinds of sockets.

Commit cf1b2326b734 ("nbd: verify socket is supported during setup") made sure the socket supported a shutdown() method.

Explicitely accept TCP and UNIX stream sockets.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-40080"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-28T12:15:42Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnbd: restrict sockets to TCP and UDP\n\nRecently, syzbot started to abuse NBD with all kinds of sockets.\n\nCommit cf1b2326b734 (\"nbd: verify socket is supported during setup\")\nmade sure the socket supported a shutdown() method.\n\nExplicitely accept TCP and UNIX stream sockets.",
  "id": "GHSA-mp9c-x94p-8jh7",
  "modified": "2026-07-14T15:31:28Z",
  "published": "2025-10-28T12:30:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40080"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/37ad11f20e164c23ce827dd455b42c0fdd29685c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4f9e6ff6319dbcebea64b50af0304cf0ad7e97e7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/808e2335bc1cf2293b9e36ccc94c267c81509c71"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9f7c02e031570e8291a63162c6c046dc15ff85b0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c365e8f20f4201d873a70385bd919f0fb531e960"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

ICSA-26-209-04

Vulnerability from csaf_cisa - Published: 2026-07-14 00:00 - Updated: 2026-07-28 06:00

Summary

Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP

Scope

352 vulnerabilities in this advisory, including CVE-2025-40080.

CVE-2025-40080

5.5 (Medium)


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

Known affected: 5 products

Open the full advisory

MSRC_CVE-2025-40080

Vulnerability from csaf_microsoft - Published: 2025-10-02 00:00 - Updated: 2025-10-29 01:03

Summary

nbd: restrict sockets to TCP and UDP

Scope

1 vulnerability in this advisory, including CVE-2025-40080.

CVE-2025-40080

Fixed: 1 product Known affected: 1 product

https://learn.microsoft.com/en-us/azure/azure-linux/tutoria…

Open the full advisory

OPENSUSE-SU-2025:15702-1

Vulnerability from csaf_opensuse - Published: 2025-11-04 00:00 - Updated: 2025-11-04 00:00

Summary

kernel-devel-6.17.7-1.1 on GA media

Severity

Moderate

Scope

83 vulnerabilities in this advisory, including CVE-2025-40080.

CVE-2025-40080

5.5 (Medium)


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

Recommended: 16 products

Open the full advisory

OPENSUSE-SU-2025:20091-1

Vulnerability from csaf_opensuse - Published: 2025-11-26 17:04 - Updated: 2025-11-26 17:04

Summary

Security update for the Linux Kernel

Severity

Important

Scope

83 vulnerabilities in this advisory, including CVE-2025-40080.

CVE-2025-40080

5.5 (Medium)


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

Recommended: 117 products

Open the full advisory

OPENSUSE-SU-2026:10301-1

Vulnerability from csaf_opensuse - Published: 2026-03-07 00:00 - Updated: 2026-03-07 00:00

Summary

kernel-devel-longterm-6.18.16-1.1 on GA media

Severity

Moderate

Scope

199 vulnerabilities in this advisory, including CVE-2025-40080.

CVE-2025-40080

5.5 (Medium)


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

Recommended: 8 products

Open the full advisory

SSA-019113

Vulnerability from csaf_siemens - Published: 2026-07-14 00:00 - Updated: 2026-09-08 00:00

Summary

SSA-019113: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1.6

Scope

431 vulnerabilities in this advisory, including CVE-2025-40080.

CVE-2025-40080

5.5 (Medium)


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

Known affected: 5 products

Open the full advisory

SUSE-SU-2025:21040-1

Vulnerability from csaf_suse - Published: 2025-11-13 15:32 - Updated: 2025-11-13 15:32

Summary

Security update for the Linux Kernel

Severity

Important

Scope

191 vulnerabilities in this advisory, including CVE-2025-40080.

CVE-2025-40080

5.5 (Medium)


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

Recommended: 11 products

Open the full advisory

SUSE-SU-2025:21052-1

Vulnerability from csaf_suse - Published: 2025-11-25 18:51 - Updated: 2025-11-25 18:51

Summary

Security update for the Linux Kernel

Severity

Important

Scope

191 vulnerabilities in this advisory, including CVE-2025-40080.

CVE-2025-40080

5.5 (Medium)


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

Recommended: 4 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.

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.

Action not permitted

CVE-2025-40080 (GCVE-0-2025-40080)

Tags

Sightings

Nomenclature