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CVE-2025-68255 (GCVE-0-2025-68255)

Vulnerability from cvelistv5 – Published: 2025-12-16 14:44 – Updated: 2026-08-05 12:10
VLAI
Title
staging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing
Summary
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing The Supported Rates IE length from an incoming Association Request frame was used directly as the memcpy() length when copying into a fixed-size 16-byte stack buffer (supportRate). A malicious station can advertise an IE length larger than 16 bytes, causing a stack buffer overflow. Clamp ie_len to the buffer size before copying the Supported Rates IE, and correct the bounds check when merging Extended Supported Rates to prevent a second potential overflow. This prevents kernel stack corruption triggered by malformed association requests.
Severity
8.8 (High)
CVSS:3.1/AV:A/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: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < 49b7806851f93fd342838c93f4f765e0cc5029b0 (git)
Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < 4445adedae770037078803d1ce41f9e88a1944b6 (git)
Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < d129dc2a5d59b4d9cd2cc0b6eeb04df8461199f0 (git)
Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < 34620eb602aa432f090b2b784ee5c5070fb16cf9 (git)
Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < 61871c83259a511980ec2664964cecc69005398b (git)
Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < 25411f5fcf5743131158f337c99c2bbf3f8477f5 (git)
Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < e841d8ea722315b781c4fc5bf4f7670fbca88875 (git)
Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < 6ef0e1c10455927867cac8f0ed6b49f328f8cf95 (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.12
Unaffected: 0 , < 4.12 (semver)
Unaffected: 5.10.248 , ≤ 5.10.* (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)
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing\n\nThe Supported Rates IE length from an incoming Association Request frame\nwas used directly as the memcpy() length when copying into a fixed-size\n16-byte stack buffer (supportRate). A malicious station can advertise an\nIE length larger than 16 bytes, causing a stack buffer overflow.\n\nClamp ie_len to the buffer size before copying the Supported Rates IE,\nand correct the bounds check when merging Extended Supported Rates to\nprevent a second potential overflow.\n\nThis prevents kernel stack corruption triggered by malformed association\nrequests."
        }
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            "version": "3.1"
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            }
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        "shortName": "Linux"
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      "title": "staging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing",
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    "datePublished": "2025-12-16T14:44:58.031Z",
    "dateReserved": "2025-12-16T13:41:40.267Z",
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A malicious station can advertise an\\nIE length larger than 16 bytes, causing a stack buffer overflow.\\n\\nClamp ie_len to the buffer size before copying the Supported Rates IE,\\nand correct the bounds check when merging Extended Supported Rates to\\nprevent a second potential overflow.\\n\\nThis prevents kernel stack corruption triggered by malformed association\\nrequests.\"}],\"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\":\"49b7806851f93fd342838c93f4f765e0cc5029b0\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\"lessThan\":\"4445adedae770037078803d1ce41f9e88a1944b6\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\"lessThan\":\"d129dc2a5d59b4d9cd2cc0b6eeb04df8461199f0\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\"lessThan\":\"34620eb602aa432f090b2b784ee5c5070fb16cf9\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\"lessThan\":\"61871c83259a511980ec2664964cecc69005398b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\"lessThan\":\"25411f5fcf5743131158f337c99c2bbf3f8477f5\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\"lessThan\":\"e841d8ea722315b781c4fc5bf4f7670fbca88875\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\"lessThan\":\"6ef0e1c10455927867cac8f0ed6b49f328f8cf95\",\"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\":\"5.10.248\",\"lessThanOrEqual\":\"5.10.*\",\"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:H/I:H/A:H\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":5.9}]},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/25411f5fcf5743131158f337c99c2bbf3f8477f5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/34620eb602aa432f090b2b784ee5c5070fb16cf9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4445adedae770037078803d1ce41f9e88a1944b6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/49b7806851f93fd342838c93f4f765e0cc5029b0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/61871c83259a511980ec2664964cecc69005398b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6ef0e1c10455927867cac8f0ed6b49f328f8cf95\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d129dc2a5d59b4d9cd2cc0b6eeb04df8461199f0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e841d8ea722315b781c4fc5bf4f7670fbca88875\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-08-13T17:36:30+00:00",
      "cve": "CVE-2025-68255",
      "id": "CVE-2025-68255",
      "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: Linux kernel: Stack buffer overflow in rtl8723bs Wi-Fi driver",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68255.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-29T01:12:33Z",
      "cve": "CVE-2025-68255",
      "id": "CVE-2025-68255",
      "initial_release_date": "2025-12-17T00:24:17Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "610",
      "product_status:known_not_affected": "260",
      "product_status:recommended": "295",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-68255",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-68255.json",
      "version": "39"
    }
  }
}



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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

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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.


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