{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43267", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:55.997Z", "datePublished": "2026-05-06T11:28:52.887Z", "dateUpdated": "2026-05-07T17:15:14.362Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-07T17:15:14.362Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw89: fix potential zero beacon interval in beacon tracking\n\nDuring fuzz testing, it was discovered that bss_conf->beacon_int\nmight be zero, which could result in a division by zero error in\nsubsequent calculations. Set a default value of 100 TU if the\ninterval is zero to ensure stability."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/realtek/rtw89/core.c"], "versions": [{"version": "d360551f265e3c942ce06cd6f4d2f7f67741bcbd", "lessThan": "1260bee01493126cf9c872b6ca2af261173baa6d", "status": "affected", "versionType": "git"}, {"version": "d360551f265e3c942ce06cd6f4d2f7f67741bcbd", "lessThan": "e00c9a4ec84c0bb067833b34202f457badbbc1c1", "status": "affected", "versionType": "git"}, {"version": "d360551f265e3c942ce06cd6f4d2f7f67741bcbd", "lessThan": "eb57be32f438c57c88d6ce756101c1dfbcc03bba", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/realtek/rtw89/core.c"], "versions": [{"version": "6.18", "status": "affected"}, {"version": "0", "lessThan": "6.18", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.16", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.6", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "6.18.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "6.19.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/1260bee01493126cf9c872b6ca2af261173baa6d"}, {"url": "https://git.kernel.org/stable/c/e00c9a4ec84c0bb067833b34202f457badbbc1c1"}, {"url": "https://git.kernel.org/stable/c/eb57be32f438c57c88d6ce756101c1dfbcc03bba"}], "title": "wifi: rtw89: fix potential zero beacon interval in beacon tracking", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw89: fix potential zero beacon interval in beacon tracking\n\nDuring fuzz testing, it was discovered that bss_conf->beacon_int\nmight be zero, which could result in a division by zero error in\nsubsequent calculations. Set a default value of 100 TU if the\ninterval is zero to ensure stability."}], "id": "CVE-2026-43267", "lastModified": "2026-05-06T13:07:51.607", "metrics": {}, "published": "2026-05-06T12:16:47.810", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1260bee01493126cf9c872b6ca2af261173baa6d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e00c9a4ec84c0bb067833b34202f457badbbc1c1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/eb57be32f438c57c88d6ce756101c1dfbcc03bba"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: wifi: rtw89: fix potential zero beacon interval in beacon tracking", "id": "2467147", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467147"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-369", "details": ["A flaw was found in the `rtw89` Wi-Fi driver within the Linux kernel. This vulnerability occurs when the beacon interval, a timing parameter used in Wi-Fi communication, is set to zero. This can lead to a division by zero error during subsequent calculations, potentially causing system instability or a denial of service (DoS). An attacker could potentially exploit this by sending a specially crafted Wi-Fi beacon."], "name": "CVE-2026-43267", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43267\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43267\nhttps://lore.kernel.org/linux-cve-announce/2026050609-CVE-2026-43267-d9b7@gregkh/T"], "threat_severity": "Moderate"}