CVE-2025-68254 (GCVE-0-2025-68254)

Vulnerability from cvelistv5 – Published: 2025-12-16 14:44 – Updated: 2026-08-05 12:10
VLAI
Title
staging: rtl8723bs: fix out-of-bounds read in OnBeacon ESR IE parsing
Summary
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix out-of-bounds read in OnBeacon ESR IE parsing The Extended Supported Rates (ESR) IE handling in OnBeacon accessed *(p + 1 + ielen) and *(p + 2 + ielen) without verifying that these offsets lie within the received frame buffer. A malformed beacon with an ESR IE positioned at the end of the buffer could cause an out-of-bounds read, potentially triggering a kernel panic. Add a boundary check to ensure that the ESR IE body and the subsequent bytes are within the limits of the frame before attempting to access them. This prevents OOB reads caused by malformed beacon frames.
Severity
7.1 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < c03cb111628924827351e19baa5b073e9b0d723d (git)
Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < bb5940193d813449540d8d3a82abc045be41f48a (git)
Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < c173ce97d3f0f0c0fefa39139d6d04ba60b5db22 (git)
Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < d1ab7f9cee22e7b8a528da9ac953e4193b96cda5 (git)
Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < 38292407c2bb5b2b3131aaace4ecc7a829b40b76 (git)
Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < bf323db1d883c209880bd92f3b12503e3531c3fc (git)
Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < 502ddcc405b69fa92e0add6c1714d654504f6fd7 (git)
Create a notification for this product.
Linux Linux Affected: 4.12
Unaffected: 0 , < 4.12 (semver)
Unaffected: 5.15.198 , ≤ 5.15.* (semver)
Unaffected: 6.1.160 , ≤ 6.1.* (semver)
Unaffected: 6.6.120 , ≤ 6.6.* (semver)
Unaffected: 6.12.62 , ≤ 6.12.* (semver)
Unaffected: 6.17.12 , ≤ 6.17.* (semver)
Unaffected: 6.18.1 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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{
  "containers": {
    "cna": {
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          "product": "Linux",
          "programFiles": [
            "drivers/staging/rtl8723bs/core/rtw_mlme_ext.c"
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              "status": "unaffected",
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              "versionType": "semver"
            },
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              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.1",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.198",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.160",
                  "versionStartIncluding": "4.12",
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                },
                {
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                  "versionEndExcluding": "6.6.120",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.62",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17.12",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
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              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix out-of-bounds read in OnBeacon ESR IE parsing\n\nThe Extended Supported Rates (ESR) IE handling in OnBeacon accessed\n*(p + 1 + ielen) and *(p + 2 + ielen) without verifying that these\noffsets lie within the received frame buffer. A malformed beacon with\nan ESR IE positioned at the end of the buffer could cause an\nout-of-bounds read, potentially triggering a kernel panic.\n\nAdd a boundary check to ensure that the ESR IE body and the subsequent\nbytes are within the limits of the frame before attempting to access\nthem.\n\nThis prevents OOB reads caused by malformed beacon frames."
        }
      ],
      "metrics": [
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          "cvssV3_1": {
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:A - A nearby attacker can inject a malformed 802.11 beacon; scan mode accepts foreign BSSIDs, and connected mode is reachable by spoofing the associated BSSID.\nAC:L - The attacker only needs to place an ESR IE ending in 0x2D at the frame boundary. No race or condition outside the attacker\u2019s control is required.\nPR:N - Beacons are unauthenticated broadcast management frames processed before association-state filtering, with no capability or credential check.\nUI:N - No victim action is required once the affected wireless interface is operating; injected beacons are processed automatically.\nS:U - The vulnerable driver and resulting kernel impacts remain within the host kernel\u2019s security authority.\nC:L - The invalid access is strictly limited to one byte immediately beyond the logical frame, potentially sampling skb tail data but not providing an arbitrary-read primitive.\nI:N - There is no out-of-bounds write; the only write decrements the length field inside the attacker-supplied receive frame.\nA:H - The kernel CNA description identifies a potential kernel panic from the invalid read. An attacker can repeatedly transmit malformed beacons to sustain denial of service."
            }
          ]
        }
      ],
      "providerMetadata": {
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/502ddcc405b69fa92e0add6c1714d654504f6fd7"
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      ],
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68254",
    "datePublished": "2025-12-16T14:44:57.204Z",
    "dateReserved": "2025-12-16T13:41:40.266Z",
    "dateUpdated": "2026-08-05T12:10:29.074Z",
    "state": "PUBLISHED"
  },
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      "date": "2026-08-06",
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A malformed beacon with\\nan ESR IE positioned at the end of the buffer could cause an\\nout-of-bounds read, potentially triggering a kernel panic.\\n\\nAdd a boundary check to ensure that the ESR IE body and the subsequent\\nbytes are within the limits of the frame before attempting to access\\nthem.\\n\\nThis prevents OOB reads caused by malformed beacon frames.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/staging/rtl8723bs/core/rtw_mlme_ext.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\"lessThan\":\"c03cb111628924827351e19baa5b073e9b0d723d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\"lessThan\":\"bb5940193d813449540d8d3a82abc045be41f48a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\"lessThan\":\"c173ce97d3f0f0c0fefa39139d6d04ba60b5db22\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\"lessThan\":\"d1ab7f9cee22e7b8a528da9ac953e4193b96cda5\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\"lessThan\":\"38292407c2bb5b2b3131aaace4ecc7a829b40b76\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\"lessThan\":\"bf323db1d883c209880bd92f3b12503e3531c3fc\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\"lessThan\":\"502ddcc405b69fa92e0add6c1714d654504f6fd7\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/staging/rtl8723bs/core/rtw_mlme_ext.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4.12\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"4.12\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.198\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.160\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.120\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.62\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.17.12\",\"lessThanOrEqual\":\"6.17.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.1\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.19\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":4.2}]},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/38292407c2bb5b2b3131aaace4ecc7a829b40b76\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/502ddcc405b69fa92e0add6c1714d654504f6fd7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/bb5940193d813449540d8d3a82abc045be41f48a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/bf323db1d883c209880bd92f3b12503e3531c3fc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c03cb111628924827351e19baa5b073e9b0d723d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c173ce97d3f0f0c0fefa39139d6d04ba60b5db22\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d1ab7f9cee22e7b8a528da9ac953e4193b96cda5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-30T01:35:04+00:00",
      "cve": "CVE-2025-68254",
      "id": "CVE-2025-68254",
      "initial_release_date": "2025-12-16T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: staging: rtl8723bs: fix out-of-bounds read in OnBeacon ESR IE parsing",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68254.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-16T18:11:18Z",
      "cve": "CVE-2025-68254",
      "id": "CVE-2025-68254",
      "initial_release_date": "2025-12-17T00:24:18Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "394",
      "product_status:known_not_affected": "358",
      "product_status:recommended": "313",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-68254",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-68254.json",
      "version": "31"
    }
  }
}



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Taxonomy of the tags.





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.