CVE-2026-46039 (GCVE-0-2026-46039)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:56 – Updated: 2026-08-05 12:29
VLAI
Title
rxgk: Fix potential integer overflow in length check
Summary
In the Linux kernel, the following vulnerability has been resolved: rxgk: Fix potential integer overflow in length check Fix potential integer overflow in rxgk_extract_token() when checking the length of the ticket. Rather than rounding up the value to be tested (which might overflow), round down the size of the available data.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 2429a197648178cd4dc930a9d87c13c547460564 , < 43222ac484f93b3ec2d240a7575e1cedd31f5fa4 (git)
Affected: 2429a197648178cd4dc930a9d87c13c547460564 , < 183d37f12d1c8ed24a5bfc7addad05510da22a94 (git)
Affected: 2429a197648178cd4dc930a9d87c13c547460564 , < 6929350080f4da292d111a3b33e53138fee51cec (git)
Affected: 71571e187106631a8127f2dde780f35caa358d33 (git)
Affected: 6.16.9 , < 6.17 (semver)
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Linux Linux Affected: 6.17
Unaffected: 0 , < 6.17 (semver)
Unaffected: 6.18.27 , ≤ 6.18.* (semver)
Unaffected: 7.0.4 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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{
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/rxrpc/rxgk_app.c",
            "net/rxrpc/rxgk_common.h"
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    "datePublished": "2026-05-27T12:56:51.317Z",
    "dateReserved": "2026-05-13T15:03:33.093Z",
    "dateUpdated": "2026-08-05T12:29:17.995Z",
    "state": "PUBLISHED"
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-05T14:51:18+00:00",
      "cve": "CVE-2026-46039",
      "id": "CVE-2026-46039",
      "initial_release_date": "2026-05-27T00:00:00+00:00",
      "product_status:known_affected": "76",
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      "source": "Red Hat CSAF VEX",
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      "title": "kernel: rxgk: Fix potential integer overflow in length check",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46039.json",
      "version": "3"
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      "cve": "CVE-2026-46039",
      "id": "CVE-2026-46039",
      "initial_release_date": "2026-05-28T03:53:53Z",
      "product_status:known_not_affected": "293",
      "product_status:recommended": "4",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-46039",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-46039.json",
      "version": "7"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.