{"id":"CVE-2026-48132","aliases":["EUVD-2026-31819","GHSA-3h9p-9pvw-73vm"],"status":"published","title":"VPN service may restart unexpectedly when processing IKE traffic over NAT-T 4500/UDP","description":"The Security Gateway does not correctly validate a length value in certain IKE packets when NAT-T is used (4500/UDP). As a result, a specially crafted or malformed packet can cause the VPN processing service to terminate unexpectedly, leading to denial of service (temporary interruption of VPN negotiations/traffic).","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.02139,"percentile":0.82298,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2026-05-26T12:56:47Z","modified":"2026-07-24T11:10:00Z","products":[{"vendor":"checkpoint","product":"quantum security gateway"}],"references":[{"url":"https://support.checkpoint.com/results/sk/sk184982"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48132"},{"url":"https://github.com/advisories/GHSA-3h9p-9pvw-73vm"}],"sources":{"cve":[{"id":"CVE-2026-48132","title":"VPN service may restart unexpectedly when processing IKE traffic over NAT-T 4500/UDP","description":"The Security Gateway does not correctly validate a length value in certain IKE packets when NAT-T is used (4500/UDP). As a result, a specially crafted or malformed packet can cause the VPN processing service to terminate unexpectedly, leading to denial of service (temporary interruption of VPN negotiations/traffic).","status":"published","published":"2026-05-26T12:56:47.693Z","modified":"2026-06-02T14:09:19.968Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T13:50:49.872037Z"}],"euvd":[{"id":"EUVD-2026-31819","description":"The Security Gateway does not correctly validate a length value in certain IKE packets when NAT-T is used (4500/UDP). As a result, a specially crafted or malformed packet can cause the VPN processing service to terminate unexpectedly, leading to denial of service (temporary interruption of VPN negotiations/traffic).","status":"published","published":"2026-05-26T12:56:47Z","modified":"2026-06-02T14:09:19Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T18:20:56.59039Z"}],"ghsa":[{"id":"GHSA-3h9p-9pvw-73vm","title":"The Security Gateway does not correctly validate a length value in certain IKE packets when NAT-T...","description":"The Security Gateway does not correctly validate a length value in certain IKE packets when NAT-T is used (4500/UDP). As a result, a specially crafted or malformed packet can cause the VPN processing service to terminate unexpectedly, leading to denial of service (temporary interruption of VPN negotiations/traffic).","status":"published","published":"2026-05-26T15:32:10Z","modified":"2026-05-26T15:32:16Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:08:18.132911Z"}],"nvd":[{"id":"CVE-2026-48132","description":"The Security Gateway does not correctly validate a length value in certain IKE packets when NAT-T is used (4500/UDP). As a result, a specially crafted or malformed packet can cause the VPN processing service to terminate unexpectedly, leading to denial of service (temporary interruption of VPN negotiations/traffic).","status":"published","published":"2026-05-26T14:16:38.587Z","modified":"2026-07-24T11:10:00.17Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:12:20.131508Z"}]}}