{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53182", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.390Z", "datePublished": "2026-06-25T08:38:56.654Z", "dateUpdated": "2026-06-28T06:39:55.496Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-28T06:39:55.496Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: nl80211: reject oversized EMA RNR lists\n\nnl80211_parse_rnr_elems() stores the parsed element count in a\nu8-backed cfg80211_rnr_elems::cnt field and uses that count to size\nthe flexible array allocation.\n\nReject nested NL80211_ATTR_EMA_RNR_ELEMS input once the count reaches\n255, before incrementing it again. This keeps the parser aligned with\nthe data structure it fills and matches the existing bound check used\nby nl80211_parse_mbssid_elems()."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/wireless/nl80211.c"], "versions": [{"version": "56189d7bc30531def6b999f27940ee43c6ff2569", "lessThan": "fc0ec2fc02dfe52c5821f36fbccf6a45df43f508", "status": "affected", "versionType": "git"}, {"version": "dbbb27e183b1568d5a907ace1cd144b0709ea52a", "lessThan": "688fcac7054abc680c0eef753f2bb772cfaf8cf7", "status": "affected", "versionType": "git"}, {"version": "dbbb27e183b1568d5a907ace1cd144b0709ea52a", "lessThan": "30c3fa80f423613efdda3deca4af52ff7d20e4e2", "status": "affected", "versionType": "git"}, {"version": "dbbb27e183b1568d5a907ace1cd144b0709ea52a", "lessThan": "265c07c09c837621730d35f02975207a1224bf05", "status": "affected", "versionType": "git"}, {"version": "dbbb27e183b1568d5a907ace1cd144b0709ea52a", "lessThan": "ecbf3c45add30a0857414e156bdb9c79906f0ff6", "status": "affected", "versionType": "git"}, {"version": "dbbb27e183b1568d5a907ace1cd144b0709ea52a", "lessThan": "4cd92957e8f8cc4ebfe8a5d4203c14c592fde6b1", "status": "affected", "versionType": "git"}, {"version": "6.1.160", "lessThan": "6.1.176", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/wireless/nl80211.c"], "versions": [{"version": "6.4", "status": "affected"}, {"version": "0", "lessThan": "6.4", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.176", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.143", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.94", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.36", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.13", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "6.1.160", "versionEndExcluding": "6.1.176"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.6.143"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.12.94"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.18.36"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "7.0.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/fc0ec2fc02dfe52c5821f36fbccf6a45df43f508"}, {"url": "https://git.kernel.org/stable/c/688fcac7054abc680c0eef753f2bb772cfaf8cf7"}, {"url": "https://git.kernel.org/stable/c/30c3fa80f423613efdda3deca4af52ff7d20e4e2"}, {"url": "https://git.kernel.org/stable/c/265c07c09c837621730d35f02975207a1224bf05"}, {"url": "https://git.kernel.org/stable/c/ecbf3c45add30a0857414e156bdb9c79906f0ff6"}, {"url": "https://git.kernel.org/stable/c/4cd92957e8f8cc4ebfe8a5d4203c14c592fde6b1"}], "title": "wifi: nl80211: reject oversized EMA RNR lists", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"bugzilla": {"description": "kernel: wifi: nl80211: reject oversized EMA RNR lists", "id": "2492722", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492722"}, "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-770", "details": ["A flaw was found in the Linux kernel's nl80211 Wi-Fi subsystem. The nl80211_parse_rnr_elems() function, responsible for parsing EMA RNR (Enhanced Multiple Access Reduced Neighbor Report) lists, does not properly handle an excessive number of nested NL80211_ATTR_EMA_RNR_ELEMS inputs. This improper input validation could allow a remote attacker to cause a denial of service (DoS) by providing an oversized EMA RNR list, potentially leading to system instability or a crash."], "name": "CVE-2026-53182", "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": "Out of support scope", "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": "2026-06-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53182\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53182\nhttps://lore.kernel.org/linux-cve-announce/2026062555-CVE-2026-53182-1e3e@gregkh/T"], "threat_severity": "Moderate"}

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