{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-45841",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-45841",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-05-27T09:24:40.805Z",
    "updatedAt": "2026-10-15T01:19:44.352Z",
    "importedAt": "2026-10-24T01:58:14.884Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "netfilter: nfnetlink_osf: fix divide-by-zero in OSF_WSS_MODULO",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nfnetlink_osf: fix divide-by-zero in OSF_WSS_MODULO\n\nnf_osf_match_one() computes ctx->window % f->wss.val in the\nOSF_WSS_MODULO branch with no guard for f->wss.val == 0. A\nCAP_NET_ADMIN user can add such a fingerprint via nfnetlink; a\nsubsequent matching TCP SYN divides by zero and panics the kernel.\n\nReject the bogus fingerprint in nfnl_osf_add_callback() above the\nper-option for-loop. f->wss is per-fingerprint, not per-option, so\nthe check must run regardless of f->opt_num (including 0). Also\nreject wss.wc >= OSF_WSS_MAX; nf_osf_match_one() already treats that\nas \"should not happen\".\n\nCrash:\n Oops: divide error: 0000 [#1] SMP KASAN NOPTI\n RIP: 0010:nf_osf_match_one (net/netfilter/nfnetlink_osf.c:98)\n Call Trace:\n <IRQ>\n  nf_osf_match (net/netfilter/nfnetlink_osf.c:220)\n  xt_osf_match_packet (net/netfilter/xt_osf.c:32)\n  ipt_do_table (net/ipv4/netfilter/ip_tables.c:348)\n  nf_hook_slow (net/netfilter/core.c:622)\n  ip_local_deliver (net/ipv4/ip_input.c:265)\n  ip_rcv (include/linux/skbuff.h:1162)\n  __netif_receive_skb_one_core (net/core/dev.c:6181)\n  process_backlog (net/core/dev.c:6642)\n  __napi_poll (net/core/dev.c:7710)\n  net_rx_action (net/core/dev.c:7945)\n  handle_softirqs (kernel/softirq.c:622)",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cb833bbc1b3c51e08652d3c86298307c07d3f2db"
            },
            {
              "version": "11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384",
              "status": "affected",
              "versionType": "git",
              "lessThan": "26900306a5a2c3e4f75c643a064525526bb6e5f3"
            },
            {
              "version": "11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0694618cf3e9b120666e31f5f383a6e466d95a0d"
            },
            {
              "version": "11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8def8fbd23f40e945febe913d04b731012ce0082"
            },
            {
              "version": "11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c55940895245d8ef658ab381248a28755218d625"
            },
            {
              "version": "11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fb965b1cfe92b28d28b5ebe3116b81dbef9f2d2f"
            },
            {
              "version": "11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9a05e195618a6d474f2bcd5b6376d0ffc2f00366"
            },
            {
              "version": "11eeef41d5f63c7d2f7fdfcc733eb7fb137cc384",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2195574dc6d9017d32ac346987e12659f931d932"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.31",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.31"
            },
            {
              "version": "5.10.258",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.209",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.175",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.141",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.91",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.33",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.0.10",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}