CVE-2026-52921

{"id": "CVE-2026-52921", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "48596a8ddc46f96afb6a2cd72787cb15d6bb01fc", "lessThan": "be75218fadea22e59c8673db212f29c681bf45bb", "versionType": "git"}, {"status": "affected", "version": "48596a8ddc46f96afb6a2cd72787cb15d6bb01fc", "lessThan": "383418c20e69f5761b6ec5238f599423f4fb77fb", "versionType": "git"}, {"status": "affected", "version": "48596a8ddc46f96afb6a2cd72787cb15d6bb01fc", "lessThan": "0d7b33ace701fe397e6e4de145f32e098178d901", "versionType": "git"}, {"status": "affected", "version": "48596a8ddc46f96afb6a2cd72787cb15d6bb01fc", "lessThan": "c281e018af98df91827d65bec00f4956c00a1b02", "versionType": "git"}, {"status": "affected", "version": "48596a8ddc46f96afb6a2cd72787cb15d6bb01fc", "lessThan": "02f75f041a93ea045834da89cd3234f4c1d749b4", "versionType": "git"}, {"status": "affected", "version": "48596a8ddc46f96afb6a2cd72787cb15d6bb01fc", "lessThan": "952e988163c2ab9939c3db9f0f8e77af6a1bb436", "versionType": "git"}, {"status": "affected", "version": "48596a8ddc46f96afb6a2cd72787cb15d6bb01fc", "lessThan": "0b530efb2cc9dbdddfd49d392e3a857f0d4ce8dc", "versionType": "git"}, {"status": "affected", "version": "48596a8ddc46f96afb6a2cd72787cb15d6bb01fc", "lessThan": "0d3a282ab5f165fc207ff49ea5b6ad8f54616bd6", "versionType": "git"}], "programFiles": ["net/netfilter/ipset/ip_set_hash_ipmark.c", "net/netfilter/ipset/ip_set_hash_ipport.c", "net/netfilter/ipset/ip_set_hash_ipportip.c", "net/netfilter/ipset/ip_set_hash_ipportnet.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.14"}, {"status": "unaffected", "version": "0", "lessThan": "4.14", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.258", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.209", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.175", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.142", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.92", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.34", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.0.11", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/netfilter/ipset/ip_set_hash_ipmark.c", "net/netfilter/ipset/ip_set_hash_ipport.c", "net/netfilter/ipset/ip_set_hash_ipportip.c", "net/netfilter/ipset/ip_set_hash_ipportnet.c"], "defaultStatus": "affected"}]}], "published": "2026-06-24T08:16:22.067", "references": [{"url": "https://git.kernel.org/stable/c/02f75f041a93ea045834da89cd3234f4c1d749b4", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/0b530efb2cc9dbdddfd49d392e3a857f0d4ce8dc", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/0d3a282ab5f165fc207ff49ea5b6ad8f54616bd6", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/0d7b33ace701fe397e6e4de145f32e098178d901", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/383418c20e69f5761b6ec5238f599423f4fb77fb", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/952e988163c2ab9939c3db9f0f8e77af6a1bb436", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/be75218fadea22e59c8673db212f29c681bf45bb", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c281e018af98df91827d65bec00f4956c00a1b02", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-835"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ipset: stop hash:* range iteration at end\n\nThe following hash set variants:\n\nhash:ip,mark\nhash:ip,port\nhash:ip,port,ip\nhash:ip,port,net\n\niterate IPv4 ranges with a 32-bit iterator.\n\nThe iterator must stop once the last address in the requested range has\nbeen processed. Advancing it once more can move the traversal state past\nthe end of the request, so a later retry may continue from an unintended\nposition.\n\nHandle the iterator increment explicitly at the end of the loop and stop\nonce the upper bound has been processed. This keeps the existing retry\nbehaviour intact for valid ranges while preventing traversal from\ncontinuing past the original boundary."}], "lastModified": "2026-07-08T17:52:39.550", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AB2F738D-6862-490A-9F9A-13DB2A58034C", "versionEndExcluding": "5.10.258", "versionStartIncluding": "4.14.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "919C10A9-7951-4A74-BADD-C135A0A8D8B4", "versionEndExcluding": "5.15.209", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "92385813-D91D-480D-83A1-F423D2CBB2BA", "versionEndExcluding": "6.1.175", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FBFF77B0-526A-4AF1-84D0-ED7187624A67", "versionEndExcluding": "6.6.142", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9CB90BD9-95B7-4D7F-9F17-4ECE6CFB66C9", "versionEndExcluding": "6.12.92", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A4B1EF6D-18D7-4838-BC37-7499D5DCC3C0", "versionEndExcluding": "6.18.34", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0520D091-FC52-4A50-AF07-70AE7D08B750", "versionEndExcluding": "7.0.11", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.14:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7875AA30-1F6F-470C-A52D-ECBD6663CEC5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.14:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4C9B8FA6-754F-42F5-98BC-410AF7DB9F4C"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.14:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EC8F8565-B401-4F3C-B423-51F371DCB908"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.14:rc7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C834B5F2-810F-4291-8E1F-1B32635E08F3"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.14:rc8:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BB4A96BC-72CC-4EF1-916C-9ED7177C196E"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0D38F0BF-A728-4133-A358-D44A2F7EE6D6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EC732D08-5F7B-46D9-B154-E60C7F4F0A97"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E5910A9D-F60A-409A-B486-FE66BFEBA9B9"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}