{"id":"CVE-2004-0459","aliases":["EUVD-2004-0458","GHSA-349j-652r-ghg9"],"status":"published","title":"The Clear Channel Assessment (CCA) algorithm in the IEEE 802.11 wireless protocol, when using...","description":"The Clear Channel Assessment (CCA) algorithm in the IEEE 802.11 wireless protocol, when using DSSS transmission encoding, allows remote attackers to cause a denial of service via a certain RF signal that causes a channel to appear busy (aka \"jabber\"), which prevents devices from transmitting data.","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":"2026-11-07","score":0.02336,"percentile":0.8368,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2004-05-20T04:00:00Z","modified":"2026-06-16T22:05:40Z","products":[{"vendor":"ieee","product":"802.11_wireless_protocol"}],"references":[{"url":"http://support.avaya.com/elmodocs2/security/ASA-2004-009.pdf","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://archives.neohapsis.com/archives/fulldisclosure/2004-05/0631.html","tags":["mailing-list","x_refsource_FULLDISC","x_transferred"]},{"url":"http://www.osvdb.org/16034","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://securitytracker.com/id?1010152","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://www.auscert.org.au/render.html?it=4091","tags":["third-party-advisory","x_refsource_AUSCERT","x_transferred","Vendor Advisory"]},{"url":"http://www.kb.cert.org/vuls/id/106678","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/16138","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.securityfocus.com/bid/10342","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2004-0459"},{"url":"https://github.com/advisories/GHSA-349j-652r-ghg9"}],"sources":{"cve":[{"id":"CVE-2004-0459","description":"The Clear Channel Assessment (CCA) algorithm in the IEEE 802.11 wireless protocol, when using DSSS transmission encoding, allows remote attackers to cause a denial of service via a certain RF signal that causes a channel to appear busy (aka \"jabber\"), which prevents devices from transmitting data.","status":"published","published":"2004-05-20T04:00:00Z","modified":"2024-08-08T00:17:14.97Z","updated_at":"2026-11-02T14:34:55.098814Z"}],"euvd":[{"id":"EUVD-2004-0458","description":"The Clear Channel Assessment (CCA) algorithm in the IEEE 802.11 wireless protocol, when using DSSS transmission encoding, allows remote attackers to cause a denial of service via a certain RF signal that causes a channel to appear busy (aka \"jabber\"), which prevents devices from transmitting data.","status":"published","published":"2004-05-20T04:00:00Z","modified":"2024-08-08T00:17:14Z","updated_at":"2026-11-03T01:15:19.183327Z"}],"ghsa":[{"id":"GHSA-349j-652r-ghg9","title":"The Clear Channel Assessment (CCA) algorithm in the IEEE 802.11 wireless protocol, when using...","description":"The Clear Channel Assessment (CCA) algorithm in the IEEE 802.11 wireless protocol, when using DSSS transmission encoding, allows remote attackers to cause a denial of service via a certain RF signal that causes a channel to appear busy (aka \"jabber\"), which prevents devices from transmitting data.","status":"published","published":"2022-04-29T02:57:45Z","modified":"2023-01-30T05:02:44Z","updated_at":"2026-11-02T14:46:42.642348Z"}],"nvd":[{"id":"CVE-2004-0459","description":"The Clear Channel Assessment (CCA) algorithm in the IEEE 802.11 wireless protocol, when using DSSS transmission encoding, allows remote attackers to cause a denial of service via a certain RF signal that causes a channel to appear busy (aka \"jabber\"), which prevents devices from transmitting data.","status":"published","published":"2004-07-07T04:00:00Z","modified":"2026-06-16T22:05:40.573Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:00:49.729639Z"}]}}