Vulnerability-Lookup

FKIE_CVE-2025-39849

Vulnerability from fkie_nvd - Published: 2025-09-19 16:15 - Updated: 2026-01-20 15:17

Severity ?

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/31229145e6ba5ace3e9391113376fa05b7831ede	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5cb7cab7adf9b1e6a99e2081b0e30e9e59d07523	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/62b635dcd69c4fde7ce1de4992d71420a37e51e3	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8e751d46336205abc259ed3990e850a9843fb649	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e472f59d02c82b511bc43a3f96d62ed08bf4537f	Patch
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html	Third Party Advisory, Mailing List

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.17
linux	linux_kernel	6.17
linux	linux_kernel	6.17
linux	linux_kernel	6.17
debian	debian_linux	11.0

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "8B458446-9056-4495-8F80-918830658355",
              "versionEndExcluding": "6.1.151",
              "versionStartIncluding": "6.1.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "1EA090E9-625C-473F-B6E7-DD8BA285FFF7",
              "versionEndExcluding": "6.6.105",
              "versionStartIncluding": "6.2.3",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F7E2B332-E920-4CAC-B400-288602DB6F16",
              "versionEndExcluding": "6.12.46",
              "versionStartIncluding": "6.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "548F104C-0F08-438B-9C97-64C903F0C678",
              "versionEndExcluding": "6.16.6",
              "versionStartIncluding": "6.13",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "327D22EF-390B-454C-BD31-2ED23C998A1C",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "C730CD9A-D969-4A8E-9522-162AAF7C0EE9",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "39982C4B-716E-4B2F-8196-FA301F47807D",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc4:*:*:*:*:*:*",
              "matchCriteriaId": "340BEEA9-D70D-4290-B502-FBB1032353B1",
              "vulnerable": true
            }
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    },
    {
      "nodes": [
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              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "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."
    }
  ],
  "id": "CVE-2025-39849",
  "lastModified": "2026-01-20T15:17:26.807",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-09-19T16:15:43.760",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/31229145e6ba5ace3e9391113376fa05b7831ede"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    },
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    },
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    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
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    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

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

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

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:44:07.905Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "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"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8e751d46336205abc259ed3990e850a9843fb649",
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            },
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              "status": "affected",
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              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "5cb7cab7adf9b1e6a99e2081b0e30e9e59d07523",
              "status": "affected",
              "version": "c38c701851011c94ce3be1ccb3593678d2933fd8",
              "versionType": "git"
            },
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              "status": "affected",
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              "versionType": "git"
            },
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              "version": "bf3c348c5fdcf00a7eeed04a1b83e454d2dca2e5",
              "versionType": "git"
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          ]
        },
        {
          "defaultStatus": "affected",
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          "programFiles": [
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          ],
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          "vendor": "Linux",
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              "version": "6.3"
            },
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              "status": "unaffected",
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            },
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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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              "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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        }
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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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}

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

FKIE_CVE-2025-39849

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

Tags

Sightings

Nomenclature