{"id":"CVE-2014-7997","aliases":["EUVD-2014-7846","GHSA-5c8v-jv86-mrjf"],"status":"published","title":"The DHCP implementation in Cisco IOS on Aironet access points does not properly handle error...","description":"The DHCP implementation in Cisco IOS on Aironet access points does not properly handle error conditions with short leases and unsuccessful lease-renewal attempts, which allows remote attackers to cause a denial of service (device restart) by triggering a transition into a recovery state that was intended to involve a network-interface restart but actually involves a full device restart, aka Bug ID CSCtn16281.","severity":{"version":"2.0","score":6.1,"vector":"AV:A/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00686,"percentile":0.52882,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-399"],"published":"2014-11-15T02:00:00Z","modified":"2026-06-17T00:16:04Z","products":[{"vendor":"cisco","product":"ios"}],"references":[{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/98691","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.securitytracker.com/id/1031218","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-7997","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2014-7997"},{"url":"https://github.com/advisories/GHSA-5c8v-jv86-mrjf"}],"sources":{"cve":[{"id":"CVE-2014-7997","description":"The DHCP implementation in Cisco IOS on Aironet access points does not properly handle error conditions with short leases and unsuccessful lease-renewal attempts, which allows remote attackers to cause a denial of service (device restart) by triggering a transition into a recovery state that was intended to involve a network-interface restart but actually involves a full device restart, aka Bug ID CSCtn16281.","status":"published","published":"2014-11-15T02:00:00Z","modified":"2024-08-06T13:03:27.65Z","updated_at":"2026-11-02T14:33:46.631905Z"}],"euvd":[{"id":"EUVD-2014-7846","description":"The DHCP implementation in Cisco IOS on Aironet access points does not properly handle error conditions with short leases and unsuccessful lease-renewal attempts, which allows remote attackers to cause a denial of service (device restart) by triggering a transition into a recovery state that was intended to involve a network-interface restart but actually involves a full device restart, aka Bug ID CSCtn16281.","status":"published","published":"2014-11-15T02:00:00Z","modified":"2024-08-06T13:03:27Z","updated_at":"2026-11-03T01:56:53.380571Z"}],"ghsa":[{"id":"GHSA-5c8v-jv86-mrjf","title":"The DHCP implementation in Cisco IOS on Aironet access points does not properly handle error...","description":"The DHCP implementation in Cisco IOS on Aironet access points does not properly handle error conditions with short leases and unsuccessful lease-renewal attempts, which allows remote attackers to cause a denial of service (device restart) by triggering a transition into a recovery state that was intended to involve a network-interface restart but actually involves a full device restart, aka Bug ID CSCtn16281.","status":"published","published":"2022-05-17T01:13:57Z","modified":"2023-02-03T05:03:26Z","updated_at":"2026-11-02T14:53:21.760979Z"}],"nvd":[{"id":"CVE-2014-7997","description":"The DHCP implementation in Cisco IOS on Aironet access points does not properly handle error conditions with short leases and unsuccessful lease-renewal attempts, which allows remote attackers to cause a denial of service (device restart) by triggering a transition into a recovery state that was intended to involve a network-interface restart but actually involves a full device restart, aka Bug ID CSCtn16281.","status":"published","published":"2014-11-15T02:59:01.517Z","modified":"2026-06-17T00:16:04.687Z","cvss":[{"version":"2.0","score":6.1,"vector":"AV:A/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-399"],"updated_at":"2026-11-02T14:02:57.304171Z"}]}}