{"id":"CVE-1999-1100","url":"https://www.cyber-defence.io/tools/cve/CVE-1999-1100","generatedAt":"2026-10-27T20:53:48.856Z","title":"Cisco PIX Private Link 4.1.6 and earlier does not properly process certain commands in the configuration file, which reduces the effective key length of the DES key to 48 bits instead of 56 bits, which makes it easier for an attacker to find the proper…","description":"Cisco PIX Private Link 4.1.6 and earlier does not properly process certain commands in the configuration file, which reduces the effective key length of the DES key to 48 bits instead of 56 bits, which makes it easier for an attacker to find the proper key via a brute force attack.","published":"1999-12-31T05:00:00.000Z","lastModified":"2026-06-16T21:49:43.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":7.5,"severity":"HIGH","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P"},"cwe":[],"affected":["cisco/pix private link"],"epss":{"score":0.01351,"percentile":0.71313,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.35%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://ciac.llnl.gov/ciac/bulletins/i-056.shtml","source":"cve@mitre.org"},{"url":"http://www.cisco.com/warp/public/770/pixkey-pub.shtml","tags":["Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/1579","source":"cve@mitre.org"},{"url":"http://ciac.llnl.gov/ciac/bulletins/i-056.shtml","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.cisco.com/warp/public/770/pixkey-pub.shtml","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/1579","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-1999-1100","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."}