{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68373", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.386Z", "datePublished": "2026-08-10T12:03:51.663Z", "dateUpdated": "2026-08-10T12:03:51.663Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-10T12:03:51.663Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: at76c50x-usb: avoid length underflow in at76_guess_freq()\n\nat76_guess_freq() checks only that the received frame is at least a bare\n802.11 header (24 bytes) before subtracting the fixed management-body\noffset:\n\n\tlen -= el_off;\n\nFor both beacon and probe response frames, el_off is 36. If the frame is\nshorter than el_off, subtracting it causes the calculated IE length to\nwrap. The length is eventually passed to cfg80211_find_elem_match() as a\nvery large unsigned value, so the element walk runs beyond the RX skb.\n\nThis path is reached from at76_rx_tasklet() while scanning. If the device\ndelivers a truncated beacon or probe response, the oversized IE length\ncauses an out-of-bounds read during scanning.\n\nSkip the IE lookup if the frame does not reach the variable elements,\nbefore subtracting el_off."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/atmel/at76c50x-usb.c"], "versions": [{"version": "1264b951463a00efebe1bb596499aaad620ec8af", "lessThan": "e165a1d295e7e814e13b0f92c86e5d48309509ce", "status": "affected", "versionType": "git"}, {"version": "1264b951463a00efebe1bb596499aaad620ec8af", "lessThan": "bcde7249d45f52f994a9872bedf45994472ade77", "status": "affected", "versionType": "git"}, {"version": "1264b951463a00efebe1bb596499aaad620ec8af", "lessThan": "fb1b50ab699211e777dca5ccfb648788b6a6e519", "status": "affected", "versionType": "git"}, {"version": "1264b951463a00efebe1bb596499aaad620ec8af", "lessThan": "f742d9c98b5c504fc9e6744eef13a721c2aea486", "status": "affected", "versionType": "git"}, {"version": "1264b951463a00efebe1bb596499aaad620ec8af", "lessThan": "61a799ffd1e5a4fd3702d547828b7ff3d161468e", "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/atmel/at76c50x-usb.c"], "versions": [{"version": "2.6.30", "status": "affected"}, {"version": "0", "lessThan": "2.6.30", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.148", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.6", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc5", "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": "2.6.30", "versionEndExcluding": "6.6.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "7.2-rc5"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/e165a1d295e7e814e13b0f92c86e5d48309509ce"}, {"url": "https://git.kernel.org/stable/c/bcde7249d45f52f994a9872bedf45994472ade77"}, {"url": "https://git.kernel.org/stable/c/fb1b50ab699211e777dca5ccfb648788b6a6e519"}, {"url": "https://git.kernel.org/stable/c/f742d9c98b5c504fc9e6744eef13a721c2aea486"}, {"url": "https://git.kernel.org/stable/c/61a799ffd1e5a4fd3702d547828b7ff3d161468e"}], "title": "wifi: at76c50x-usb: avoid length underflow in at76_guess_freq()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/wireless/atmel/at76c50x-usb.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "e165a1d295e7e814e13b0f92c86e5d48309509ce", "status": "affected", "version": "1264b951463a00efebe1bb596499aaad620ec8af", "versionType": "git"}, {"lessThan": "bcde7249d45f52f994a9872bedf45994472ade77", "status": "affected", "version": "1264b951463a00efebe1bb596499aaad620ec8af", "versionType": "git"}, {"lessThan": "fb1b50ab699211e777dca5ccfb648788b6a6e519", "status": "affected", "version": "1264b951463a00efebe1bb596499aaad620ec8af", "versionType": "git"}, {"lessThan": "f742d9c98b5c504fc9e6744eef13a721c2aea486", "status": "affected", "version": "1264b951463a00efebe1bb596499aaad620ec8af", "versionType": "git"}, {"lessThan": "61a799ffd1e5a4fd3702d547828b7ff3d161468e", "status": "affected", "version": "1264b951463a00efebe1bb596499aaad620ec8af", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/wireless/atmel/at76c50x-usb.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.30"}, {"lessThan": "2.6.30", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.148", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.101", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.42", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2-rc5", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: at76c50x-usb: avoid length underflow in at76_guess_freq()\n\nat76_guess_freq() checks only that the received frame is at least a bare\n802.11 header (24 bytes) before subtracting the fixed management-body\noffset:\n\n\tlen -= el_off;\n\nFor both beacon and probe response frames, el_off is 36. If the frame is\nshorter than el_off, subtracting it causes the calculated IE length to\nwrap. The length is eventually passed to cfg80211_find_elem_match() as a\nvery large unsigned value, so the element walk runs beyond the RX skb.\n\nThis path is reached from at76_rx_tasklet() while scanning. If the device\ndelivers a truncated beacon or probe response, the oversized IE length\ncauses an out-of-bounds read during scanning.\n\nSkip the IE lookup if the frame does not reach the variable elements,\nbefore subtracting el_off."}], "id": "CVE-2026-68373", "lastModified": "2026-08-10T13:20:30.190", "metrics": {}, "published": "2026-08-10T13:20:30.190", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/61a799ffd1e5a4fd3702d547828b7ff3d161468e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bcde7249d45f52f994a9872bedf45994472ade77"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e165a1d295e7e814e13b0f92c86e5d48309509ce"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f742d9c98b5c504fc9e6744eef13a721c2aea486"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fb1b50ab699211e777dca5ccfb648788b6a6e519"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel: Out-of-bounds read in wifi driver due to length underflow", "id": "2513238", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513238"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.9", "cvss3_scoring_vector": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nwifi: at76c50x-usb: avoid length underflow in at76_guess_freq()\nat76_guess_freq() checks only that the received frame is at least a bare\n802.11 header (24 bytes) before subtracting the fixed management-body\noffset:\nlen -= el_off;\nFor both beacon and probe response frames, el_off is 36. If the frame is\nshorter than el_off, subtracting it causes the calculated IE length to\nwrap. The length is eventually passed to cfg80211_find_elem_match() as a\nvery large unsigned value, so the element walk runs beyond the RX skb.\nThis path is reached from at76_rx_tasklet() while scanning. If the device\ndelivers a truncated beacon or probe response, the oversized IE length\ncauses an out-of-bounds read during scanning.\nSkip the IE lookup if the frame does not reach the variable elements,\nbefore subtracting el_off.", "A flaw was found in the Linux kernel's `at76c50x-usb` Wi-Fi driver. A remote attacker could exploit a length underflow vulnerability in the `at76_guess_freq()` function by sending a specially crafted Wi-Fi frame. This can cause an out-of-bounds read during the scanning process, potentially leading to a denial of service or the disclosure of sensitive information."], "name": "CVE-2026-68373", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "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"}, {"cpe": "cpe:/a:redhat:enterprise_linux_nvidia:", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux for NVIDIA 26"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-08-10T12:03:51Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68373\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68373\nhttps://git.kernel.org/stable/c/61a799ffd1e5a4fd3702d547828b7ff3d161468e\nhttps://git.kernel.org/stable/c/bcde7249d45f52f994a9872bedf45994472ade77\nhttps://git.kernel.org/stable/c/e165a1d295e7e814e13b0f92c86e5d48309509ce\nhttps://git.kernel.org/stable/c/f742d9c98b5c504fc9e6744eef13a721c2aea486\nhttps://git.kernel.org/stable/c/fb1b50ab699211e777dca5ccfb648788b6a6e519"], "threat_severity": "Important"}