{"id":"CVE-2026-103393","aliases":["EUVD-2026-112223","GHSA-m7g4-w7cp-5j93"],"status":"published","title":"Session Smart Router: An attacker can cause an out-of-bounds read during VRRP packet processing","description":"An Out-of-Bounds Read vulnerability in the VRRP implementation in Juniper Networks Session Smart Router allows an L2-adjacent attacker to read stale memory contents or cause a system fault via a specially crafted VRRPv3 advertisement.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00154,"percentile":0.04591,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2026-10-28T16:34:00Z","modified":"2026-11-05T19:03:35Z","products":[{"vendor":"juniper networks","product":"session smart router"}],"references":[{"url":"https://supportportal.juniper.net/JSA112183","tags":["vendor-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-103393"},{"url":"https://github.com/advisories/GHSA-m7g4-w7cp-5j93"}],"sources":{"cve":[{"id":"CVE-2026-103393","title":"Session Smart Router: An attacker can cause an out-of-bounds read during VRRP packet processing","description":"An Out-of-Bounds Read vulnerability in the VRRP implementation in Juniper Networks Session Smart Router allows an L2-adjacent attacker to read stale memory contents or cause a system fault via a specially crafted VRRPv3 advertisement.","status":"published","published":"2026-10-28T16:34:00.167Z","modified":"2026-11-05T19:03:35.774Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-125"],"updated_at":"2026-11-05T20:54:58.923322Z"}],"euvd":[{"id":"EUVD-2026-112223","description":"An Out-of-Bounds Read vulnerability in the VRRP implementation in Juniper Networks Session Smart Router allows an L2-adjacent attacker to read stale memory contents or cause a system fault via a specially crafted VRRPv3 advertisement.","status":"published","published":"2026-10-28T16:34:00Z","modified":"2026-11-05T19:03:35Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-05T20:01:48.85376Z"}],"ghsa":[{"id":"GHSA-m7g4-w7cp-5j93","title":"An Out-of-Bounds Read vulnerability in the VRRP implementation in Juniper Networks Session Smart...","description":"An Out-of-Bounds Read vulnerability in the VRRP implementation in Juniper Networks Session Smart Router allows an L2-adjacent attacker to read stale memory contents or cause a system fault via a specially crafted VRRPv3 advertisement.","status":"published","published":"2026-10-28T18:32:02Z","modified":"2026-10-28T18:32:09Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:14:35.861264Z"}],"nvd":[{"id":"CVE-2026-103393","description":"An Out-of-Bounds Read vulnerability in the VRRP implementation in Juniper Networks Session Smart Router allows an L2-adjacent attacker to read stale memory contents or cause a system fault via a specially crafted VRRPv3 advertisement.","status":"published","published":"2026-10-28T17:17:22.793Z","modified":"2026-11-05T19:17:07Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-125"],"updated_at":"2026-11-05T21:56:47.444894Z"}]}}