{"id":"CVE-2001-0163","url":"https://www.cyber-defence.io/tools/cve/CVE-2001-0163","generatedAt":"2026-10-27T19:37:05.082Z","title":"Cisco AP340 base station produces predictable TCP Initial Sequence Numbers (ISNs), which allows remote attackers to spoof or hijack TCP connections.","description":"Cisco AP340 base station produces predictable TCP Initial Sequence Numbers (ISNs), which allows remote attackers to spoof or hijack TCP connections.","published":"2001-01-01T05:00:00.000Z","lastModified":"2026-06-16T21:53:47.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":4.6,"severity":"MEDIUM","vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P"},"cwe":[],"affected":["cisco/aironet ap340"],"epss":{"score":0.02799,"percentile":0.86364,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"1999-09-27","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":19522,"kind":"exploit","title":"Linux Kernel 2.2 - Predictable TCP Initial Sequence Number","url":"https://www.exploit-db.com/exploits/19522","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/remote/19522.txt","file":"exploits/linux/remote/19522.txt","published":"1999-09-27","added":"1999-09-27","updated":"2012-07-02","author":"Stealth & S. Krahmer","type":"remote","platform":"linux","port":null,"verified":true,"codes":["CVE-2004-0641","OSVDB-199","CVE-2002-1463","CVE-2001-1104","CVE-2001-0751","CVE-2001-0328","CVE-2001-0288","CVE-2001-0163","CVE-2001-0162","CVE-2000-0916","CVE-1999-0077"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://www.securityfocus.com/bid/670/info"}]},"verdict":{"level":"high","text":"A public exploit is published in Exploit-DB (verified), so the technical barrier is gone even though the severity is medium and EPSS is 2.8%. Treat it as high on anything reachable from the internet."},"changes":[],"references":[{"url":"http://www.cs.jhu.edu/~seny/pubs/wince802.pdf","tags":["Exploit","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://www.cs.jhu.edu/~seny/pubs/wince802.pdf","tags":["Exploit","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2001-0163","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}