{"id":"CVE-2015-4293","aliases":["EUVD-2015-4316","GHSA-v8cg-fx28-fcq5"],"status":"published","title":"The packet-reassembly implementation in Cisco IOS XE 3.13S and earlier allows remote attackers to...","description":"The packet-reassembly implementation in Cisco IOS XE 3.13S and earlier allows remote attackers to cause a denial of service (CPU consumption or packet loss) via fragmented (1) IPv4 or (2) IPv6 packets that trigger ATTN-3-SYNC_TIMEOUT errors after reassembly failures, aka Bug ID CSCuo37957.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01811,"percentile":0.78768,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-399"],"published":"2015-07-30T14:00:00Z","modified":"2026-06-17T00:27:03Z","products":[{"vendor":"cisco","product":"ios_xe"}],"references":[{"url":"http://tools.cisco.com/security/center/viewAlert.x?alertId=40215","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Vendor Advisory"]},{"url":"http://www.securitytracker.com/id/1033122","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-4293"},{"url":"https://github.com/advisories/GHSA-v8cg-fx28-fcq5"}],"sources":{"cve":[{"id":"CVE-2015-4293","description":"The packet-reassembly implementation in Cisco IOS XE 3.13S and earlier allows remote attackers to cause a denial of service (CPU consumption or packet loss) via fragmented (1) IPv4 or (2) IPv6 packets that trigger ATTN-3-SYNC_TIMEOUT errors after reassembly failures, aka Bug ID CSCuo37957.","status":"published","published":"2015-07-30T14:00:00Z","modified":"2024-08-06T06:11:12.177Z","updated_at":"2026-11-02T14:35:43.322279Z"}],"euvd":[{"id":"EUVD-2015-4316","description":"The packet-reassembly implementation in Cisco IOS XE 3.13S and earlier allows remote attackers to cause a denial of service (CPU consumption or packet loss) via fragmented (1) IPv4 or (2) IPv6 packets that trigger ATTN-3-SYNC_TIMEOUT errors after reassembly failures, aka Bug ID CSCuo37957.","status":"published","published":"2015-07-30T14:00:00Z","modified":"2024-08-06T06:11:12Z","updated_at":"2026-11-03T02:22:04.533858Z"}],"ghsa":[{"id":"GHSA-v8cg-fx28-fcq5","title":"The packet-reassembly implementation in Cisco IOS XE 3.13S and earlier allows remote attackers to...","description":"The packet-reassembly implementation in Cisco IOS XE 3.13S and earlier allows remote attackers to cause a denial of service (CPU consumption or packet loss) via fragmented (1) IPv4 or (2) IPv6 packets that trigger ATTN-3-SYNC_TIMEOUT errors after reassembly failures, aka Bug ID CSCuo37957.","status":"published","published":"2022-05-17T04:09:26Z","modified":"2023-01-28T05:01:13Z","updated_at":"2026-11-02T14:43:31.331394Z"}],"nvd":[{"id":"CVE-2015-4293","description":"The packet-reassembly implementation in Cisco IOS XE 3.13S and earlier allows remote attackers to cause a denial of service (CPU consumption or packet loss) via fragmented (1) IPv4 or (2) IPv6 packets that trigger ATTN-3-SYNC_TIMEOUT errors after reassembly failures, aka Bug ID CSCuo37957.","status":"published","published":"2015-07-30T14:59:00.087Z","modified":"2026-06-17T00:27:03.533Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-399"],"updated_at":"2026-11-02T14:03:07.96297Z"}]}}