Vulnerability-Lookup

GHSA-HXJ2-JF3V-XP24

Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-09-08 09:35

Details

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

ipv4: icmp: validate reply type before using icmp_pointers

Extended echo replies use ICMP_EXT_ECHOREPLY as the outbound reply type. That value is outside the range covered by icmp_pointers[], which only describes the traditional ICMP types up to NR_ICMP_TYPES.

Avoid consulting icmp_pointers[] for reply types outside that range, and use array_index_nospec() for the remaining in-range lookup. Normal ICMP replies keep their existing behavior unchanged.

Severity

8.2 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-46037"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:17:23Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv4: icmp: validate reply type before using icmp_pointers\n\nExtended echo replies use ICMP_EXT_ECHOREPLY as the outbound reply type.\nThat value is outside the range covered by icmp_pointers[], which only\ndescribes the traditional ICMP types up to NR_ICMP_TYPES.\n\nAvoid consulting icmp_pointers[] for reply types outside that range, and\nuse array_index_nospec() for the remaining in-range lookup. Normal ICMP\nreplies keep their existing behavior unchanged.",
  "id": "GHSA-hxj2-jf3v-xp24",
  "modified": "2026-09-08T09:35:29Z",
  "published": "2026-05-27T15:33:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46037"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/67bf002a2d7387a6312138210d0bd06e3cf4879b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/92e7c209036dcc0e8ffdf806fdfd3645b263bea5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/93df2af4f491de33827550b9d420f01808c0706b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b3a88fc5ae024d43c5ecf653f3bbe837e4a6dc99"
    },
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      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bc64a66e0b9ad937d3d49934242ee62b01ba9a94"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c2178ff1c70ebfc2ab9651b230c58a34683db759"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d700c34a5d186b9ba0715bcb19e0ff80ffbfbfc1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-46037 (GCVE-0-2026-46037)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:56 – Updated: 2026-09-08 08:49

Title

ipv4: icmp: validate reply type before using icmp_pointers

Summary

In the Linux kernel, the following vulnerability has been resolved: ipv4: icmp: validate reply type before using icmp_pointers Extended echo replies use ICMP_EXT_ECHOREPLY as the outbound reply type. That value is outside the range covered by icmp_pointers[], which only describes the traditional ICMP types up to NR_ICMP_TYPES. Avoid consulting icmp_pointers[] for reply types outside that range, and use array_index_nospec() for the remaining in-range lookup. Normal ICMP replies keep their existing behavior unchanged.

Severity

8.2 (High)


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

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/b3a88fc5ae024d43c…
https://git.kernel.org/stable/c/93df2af4f491de338…
https://git.kernel.org/stable/c/92e7c209036dcc0e8…
https://git.kernel.org/stable/c/bc64a66e0b9ad937d…
https://git.kernel.org/stable/c/c2178ff1c70ebfc2a…
https://git.kernel.org/stable/c/d700c34a5d186b9ba…
https://git.kernel.org/stable/c/67bf002a2d7387a63…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

5 products

Vendor	Product	Version
Linux	Linux	Affected: d329ea5bd8845f0b196bf41b18b6173340d6e0e4 , < b3a88fc5ae024d43c5ecf653f3bbe837e4a6dc99 (git) Affected: d329ea5bd8845f0b196bf41b18b6173340d6e0e4 , < 93df2af4f491de33827550b9d420f01808c0706b (git) Affected: d329ea5bd8845f0b196bf41b18b6173340d6e0e4 , < 92e7c209036dcc0e8ffdf806fdfd3645b263bea5 (git) Affected: d329ea5bd8845f0b196bf41b18b6173340d6e0e4 , < bc64a66e0b9ad937d3d49934242ee62b01ba9a94 (git) Affected: d329ea5bd8845f0b196bf41b18b6173340d6e0e4 , < c2178ff1c70ebfc2ab9651b230c58a34683db759 (git) Affected: d329ea5bd8845f0b196bf41b18b6173340d6e0e4 , < d700c34a5d186b9ba0715bcb19e0ff80ffbfbfc1 (git) Affected: d329ea5bd8845f0b196bf41b18b6173340d6e0e4 , < 67bf002a2d7387a6312138210d0bd06e3cf4879b (git)
Linux	Linux	Affected: 5.13 Unaffected: 0 , < 5.13 (semver) Unaffected: 5.15.209 , ≤ 5.15.* (semver) Unaffected: 6.1.175 , ≤ 6.1.* (semver) Unaffected: 6.6.140 , ≤ 6.6.* (semver) Unaffected: 6.12.86 , ≤ 6.12.* (semver) Unaffected: 6.18.27 , ≤ 6.18.* (semver) Unaffected: 7.0.4 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.6 , < * (custom)
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	Affected: V3.1.6 , < * (custom)
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.6 , < * (custom)

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{
  "containers": {
    "adp": [
      {
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          {
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                "status": "affected",
                "version": "V3.1.6",
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        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-08T08:49:09.678Z",
          "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
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            },
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              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.86",
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            },
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              "lessThanOrEqual": "6.18.*",
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              "version": "6.18.27",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
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              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
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          "nodes": [
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              "cpeMatch": [
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                  "vulnerable": true
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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.