CVE-1999-1100: Cisco PIX Private Link 4.1.6 and earlier does not properly process certain commands in the configuration file, which red
Summary
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.
Why It Matters
UNKNOWN severity with CVSS n/a.
Current Status
- Vulnerability status: Not listed in CISA KEV
- Last intelligence update: 2026-08-21 · source: NVD
Entity Activity Timeline
- 2026-08-21 — Intelligence record updated（NVD sync）
Severity
UNKNOWN
Source Attribution
Source: NVD · Updated: 2026-08-21T04:30:52.770Z · Confidence: high
Impact
Based on CVSS vector: n/a — assess confidentiality, integrity, and availability impact via the official vector documentation.
Affected Software
Fix
Upgrade affected software to the fixed version identified above. Apply vendor patches and monitor advisories before exposed systems go unpatched.
Sources & Evidence
- 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
- https://exchange.xforce.ibmcloud.com/vulnerabilities/1579
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