{"id":"CVE-2015-4205","aliases":["EUVD-2015-4228","GHSA-28x7-5mgh-vp76"],"status":"published","title":"Cisco IOS XR 5.3.1 on ASR 9000 devices allows remote attackers to cause a denial of service (NPU...","description":"Cisco IOS XR 5.3.1 on ASR 9000 devices allows remote attackers to cause a denial of service (NPU chip reset or line-card reload) by sending crafted IEEE 802.3x flow-control PAUSE frames on the local network, aka Bug ID CSCut19959.","severity":{"version":"2.0","score":5.7,"vector":"AV:A/AC:M/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00868,"percentile":0.58987,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-399"],"published":"2015-06-23T14:00:00Z","modified":"2026-06-17T00:26:55Z","products":[{"vendor":"cisco","product":"ios_xr"}],"references":[{"url":"http://www.securityfocus.com/bid/75352","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id/1032691","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://tools.cisco.com/security/center/viewAlert.x?alertId=39455","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-4205"},{"url":"https://github.com/advisories/GHSA-28x7-5mgh-vp76"}],"sources":{"cve":[{"id":"CVE-2015-4205","description":"Cisco IOS XR 5.3.1 on ASR 9000 devices allows remote attackers to cause a denial of service (NPU chip reset or line-card reload) by sending crafted IEEE 802.3x flow-control PAUSE frames on the local network, aka Bug ID CSCut19959.","status":"published","published":"2015-06-23T14:00:00Z","modified":"2024-08-06T06:04:03.244Z","updated_at":"2026-11-02T14:35:43.322279Z"}],"euvd":[{"id":"EUVD-2015-4228","description":"Cisco IOS XR 5.3.1 on ASR 9000 devices allows remote attackers to cause a denial of service (NPU chip reset or line-card reload) by sending crafted IEEE 802.3x flow-control PAUSE frames on the local network, aka Bug ID CSCut19959.","status":"published","published":"2015-06-23T14:00:00Z","modified":"2024-08-06T06:04:03Z","updated_at":"2026-11-03T02:22:05.081899Z"}],"ghsa":[{"id":"GHSA-28x7-5mgh-vp76","title":"Cisco IOS XR 5.3.1 on ASR 9000 devices allows remote attackers to cause a denial of service (NPU...","description":"Cisco IOS XR 5.3.1 on ASR 9000 devices allows remote attackers to cause a denial of service (NPU chip reset or line-card reload) by sending crafted IEEE 802.3x flow-control PAUSE frames on the local network, aka Bug ID CSCut19959.","status":"published","published":"2022-05-17T03:13:37Z","modified":"2023-01-27T05:07:42Z","updated_at":"2026-11-02T14:43:10.319958Z"}],"nvd":[{"id":"CVE-2015-4205","description":"Cisco IOS XR 5.3.1 on ASR 9000 devices allows remote attackers to cause a denial of service (NPU chip reset or line-card reload) by sending crafted IEEE 802.3x flow-control PAUSE frames on the local network, aka Bug ID CSCut19959.","status":"published","published":"2015-06-23T14:59:02.743Z","modified":"2026-06-17T00:26:55.113Z","cvss":[{"version":"2.0","score":5.7,"vector":"AV:A/AC:M/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-399"],"updated_at":"2026-11-02T14:03:05.884985Z"}]}}