Vulnerability-Lookup

GHSA-4929-6X76-2XPW

Vulnerability from github – Published: 2025-09-15 15:31 – Updated: 2025-12-04 15:30

Details

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

wifi: mac80211_hwsim: Fix possible NULL dereference

In a call to mac80211_hwsim_select_tx_link() the sta pointer might be NULL, thus need to check that it is not NULL before accessing it.

Severity ?

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53209"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-15T15:15:47Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211_hwsim: Fix possible NULL dereference\n\nIn a call to mac80211_hwsim_select_tx_link() the sta pointer might\nbe NULL, thus need to check that it is not NULL before accessing it.",
  "id": "GHSA-4929-6x76-2xpw",
  "modified": "2025-12-04T15:30:31Z",
  "published": "2025-09-15T15:31:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53209"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0cc80943ef518a1c51a1111e9346d1daf11dd545"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a8a20fed3e05b3a6866c5c58855deaf3c217ccd6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d0124848c7940aba73492e282506b32a13f2e30e"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2023-53209 (GCVE-0-2023-53209)

Vulnerability from cvelistv5 – Published: 2025-09-15 14:21 – Updated: 2026-01-14 17:52

Title

wifi: mac80211_hwsim: Fix possible NULL dereference

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211_hwsim: Fix possible NULL dereference In a call to mac80211_hwsim_select_tx_link() the sta pointer might be NULL, thus need to check that it is not NULL before accessing it.

Severity ?

5.5 (Medium)


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

CWE

CWE-476 - NULL Pointer Dereference

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/d0124848c7940aba7…
	https://git.kernel.org/stable/c/a8a20fed3e05b3a68…
	https://git.kernel.org/stable/c/0cc80943ef518a1c5…

Impacted products

Vendor

Product

Version

Linux

Affected: 86e74a08fecb59985bb2d5fe3e96dc108822a420 , < d0124848c7940aba73492e282506b32a13f2e30e (git)
Affected: 86e74a08fecb59985bb2d5fe3e96dc108822a420 , < a8a20fed3e05b3a6866c5c58855deaf3c217ccd6 (git)
Affected: 86e74a08fecb59985bb2d5fe3e96dc108822a420 , < 0cc80943ef518a1c51a1111e9346d1daf11dd545 (git)

Linux

Affected: 6.1
Unaffected: 0 , < 6.1 (semver)
Unaffected: 6.1.42 , ≤ 6.1.* (semver)
Unaffected: 6.4.7 , ≤ 6.4.* (semver)
Unaffected: 6.5 , ≤ * (original_commit_for_fix)

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  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-53209",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-14T17:48:14.176157Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
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        "problemTypes": [
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            "descriptions": [
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                "description": "CWE-476 NULL Pointer Dereference",
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              }
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        "providerMetadata": {
          "dateUpdated": "2026-01-14T17:52:56.820Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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        },
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          "versions": [
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            },
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              "versionType": "semver"
            },
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            },
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              "version": "6.4.7",
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            },
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                },
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        }
      ],
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    "cveId": "CVE-2023-53209",
    "datePublished": "2025-09-15T14:21:37.415Z",
    "dateReserved": "2025-09-15T13:59:19.068Z",
    "dateUpdated": "2026-01-14T17:52:56.820Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-4929-6X76-2XPW

CVE-2023-53209 (GCVE-0-2023-53209)

Tags

Sightings

Nomenclature