CVE-1999-1175: Web Cache Control Protocol (WCCP) in Cisco Cache Engine for Cisco IOS 11.2 and earlier does not use authentication, whic
Summary
Web Cache Control Protocol (WCCP) in Cisco Cache Engine for Cisco IOS 11.2 and earlier does not use authentication, which allows remote attackers to redirect HTTP traffic to arbitrary hosts via WCCP packets to UDP port 2048.
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: 2026-08-21T04:30:52.951Z · 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://www.ciac.org/ciac/bulletins/i-054.shtml
- http://www.cisco.com/warp/public/770/wccpauth-pub.shtml
- https://exchange.xforce.ibmcloud.com/vulnerabilities/1577
- http://www.ciac.org/ciac/bulletins/i-054.shtml
- http://www.cisco.com/warp/public/770/wccpauth-pub.shtml
- https://exchange.xforce.ibmcloud.com/vulnerabilities/1577
Start Investigation
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- Timeline — events in chronological order.
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- Sources — NVD, CISA KEV, MITRE ATT&CK, vendor advisories.
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