Vulnerability-Lookup

GHSA-WFXG-5HF2-J2VG

Vulnerability from github – Published: 2025-09-22 21:30 – Updated: 2026-01-20 15:31

Details

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

wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result()

If the ssid->datalen is more than IEEE80211_MAX_SSID_LEN (32) it would lead to memory corruption so add some bounds checking.

Severity ?

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2025-39849"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-19T16:15:43Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result()\n\nIf the ssid-\u003edatalen is more than IEEE80211_MAX_SSID_LEN (32) it would\nlead to memory corruption so add some bounds checking.",
  "id": "GHSA-wfxg-5hf2-j2vg",
  "modified": "2026-01-20T15:31:21Z",
  "published": "2025-09-22T21:30:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39849"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/31229145e6ba5ace3e9391113376fa05b7831ede"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5cb7cab7adf9b1e6a99e2081b0e30e9e59d07523"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/62b635dcd69c4fde7ce1de4992d71420a37e51e3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8e751d46336205abc259ed3990e850a9843fb649"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e472f59d02c82b511bc43a3f96d62ed08bf4537f"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-39849 (GCVE-0-2025-39849)

Vulnerability from cvelistv5 – Published: 2025-09-19 15:26 – Updated: 2025-11-03 17:44

Title

wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result()

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result() If the ssid->datalen is more than IEEE80211_MAX_SSID_LEN (32) it would lead to memory corruption so add some bounds checking.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/8e751d46336205abc…
	https://git.kernel.org/stable/c/e472f59d02c82b511…
	https://git.kernel.org/stable/c/31229145e6ba5ace3…
	https://git.kernel.org/stable/c/5cb7cab7adf9b1e6a…
	https://git.kernel.org/stable/c/62b635dcd69c4fde7…

Impacted products

Vendor

Product

Version

Linux

Affected: dd43f8f90206054e7da7593de0a334fb2cd0ea88 , < 8e751d46336205abc259ed3990e850a9843fb649 (git)
Affected: c38c701851011c94ce3be1ccb3593678d2933fd8 , < e472f59d02c82b511bc43a3f96d62ed08bf4537f (git)
Affected: c38c701851011c94ce3be1ccb3593678d2933fd8 , < 31229145e6ba5ace3e9391113376fa05b7831ede (git)
Affected: c38c701851011c94ce3be1ccb3593678d2933fd8 , < 5cb7cab7adf9b1e6a99e2081b0e30e9e59d07523 (git)
Affected: c38c701851011c94ce3be1ccb3593678d2933fd8 , < 62b635dcd69c4fde7ce1de4992d71420a37e51e3 (git)
Affected: bf3c348c5fdcf00a7eeed04a1b83e454d2dca2e5 (git)

Linux

Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.1.151 , ≤ 6.1.* (semver)
Unaffected: 6.6.105 , ≤ 6.6.* (semver)
Unaffected: 6.12.46 , ≤ 6.12.* (semver)
Unaffected: 6.16.6 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:44:07.905Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/wireless/sme.c"
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              "versionType": "git"
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            {
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          "versions": [
            {
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              "version": "6.3"
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
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              "status": "unaffected",
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              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "6.6.105",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "6.12.46",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.6",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result()\n\nIf the ssid-\u003edatalen is more than IEEE80211_MAX_SSID_LEN (32) it would\nlead to memory corruption so add some bounds checking."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-29T06:00:59.902Z",
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        },
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    "datePublished": "2025-09-19T15:26:22.073Z",
    "dateReserved": "2025-04-16T07:20:57.142Z",
    "dateUpdated": "2025-11-03T17:44:07.905Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2"
}

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-WFXG-5HF2-J2VG

CVE-2025-39849 (GCVE-0-2025-39849)

Tags

Sightings

Nomenclature