{"cve":"CVE-1999-1100","nvd":{"published":"1999-12-31T05:00:00.000","modified":"2026-06-16T21:49:43.327","status":"Modified","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.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://ciac.llnl.gov/ciac/bulletins/i-056.shtml","http://www.cisco.com/warp/public/770/pixkey-pub.shtml","https://exchange.xforce.ibmcloud.com/vulnerabilities/1579","http://ciac.llnl.gov/ciac/bulletins/i-056.shtml","http://www.cisco.com/warp/public/770/pixkey-pub.shtml"],"products":["cisco:pix_private_link"],"source":"nvd","synced_at":"2026-10-19T19:33:01.030757803+00:00"},"epss":{"cve":"CVE-1999-1100","score":0.01351,"percentile":0.71518,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}