Blue Coat Systems Inc. WinProxy before 6.1a allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a large number of packets with 0xFF characters to the Telnet port (TCP 23), which corrupts the heap.
Conclusion & alert: CVE-2005-3654 is rated Moderate Risk (60.5/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.31%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-25 | 3.23% | 3.31% | +0.08% |
| 2 | 2026-06-15 | 3.29% | 3.23% | -0.05% |
| 3 | 2025-03-17 | — | 3.29% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| bluecoat | webproxy | 4.0 | cpe:2.3:a:bluecoat:webproxy:4.0:r1a:*:*:*:*:*:* |
| bluecoat | webproxy | 4.0 | cpe:2.3:a:bluecoat:webproxy:4.0:r1b:*:*:*:*:*:* |
| bluecoat | webproxy | 4.0 | cpe:2.3:a:bluecoat:webproxy:4.0:r1c:*:*:*:*:*:* |
| bluecoat | webproxy | 4.0 | cpe:2.3:a:bluecoat:webproxy:4.0:r1e:*:*:*:*:*:* |
| bluecoat | webproxy | 4.0 | cpe:2.3:a:bluecoat:webproxy:4.0:r1f:*:*:*:*:*:* |
| bluecoat | webproxy | 4.0 | cpe:2.3:a:bluecoat:webproxy:4.0:r1h:*:*:*:*:*:* |
| bluecoat | webproxy | 4.0 | cpe:2.3:a:bluecoat:webproxy:4.0:r1k:*:*:*:*:*:* |
| bluecoat | webproxy | 4.0 | cpe:2.3:a:bluecoat:webproxy:4.0:r1m:*:*:*:*:*:* |
| bluecoat | webproxy | 4.0 | cpe:2.3:a:bluecoat:webproxy:4.0:r1n:*:*:*:*:*:* |
| bluecoat | webproxy | 4.0 | cpe:2.3:a:bluecoat:webproxy:4.0:r1p:*:*:*:*:*:* |
| bluecoat | webproxy | 5.0 | cpe:2.3:a:bluecoat:webproxy:5.0:r1a:*:*:*:*:*:* |
| bluecoat | webproxy | 5.0 | cpe:2.3:a:bluecoat:webproxy:5.0:r1b:*:*:*:*:*:* |
| bluecoat | webproxy | 5.0 | cpe:2.3:a:bluecoat:webproxy:5.0:r1c:*:*:*:*:*:* |
| bluecoat | webproxy | 5.1 | cpe:2.3:a:bluecoat:webproxy:5.1:r1a:*:*:*:*:*:* |
| bluecoat | webproxy | 5.1 | cpe:2.3:a:bluecoat:webproxy:5.1:r1d:*:*:*:*:*:* |
| bluecoat | webproxy | 5.1 | cpe:2.3:a:bluecoat:webproxy:5.1:r1e:*:*:*:*:*:* |
| bluecoat | webproxy | 5.2 | cpe:2.3:a:bluecoat:webproxy:5.2:r1a:*:*:*:*:*:* |
| bluecoat | webproxy | 6.0 | cpe:2.3:a:bluecoat:webproxy:6.0:r1a:*:*:*:*:*:* |
| bluecoat | webproxy | 6.0 | cpe:2.3:a:bluecoat:webproxy:6.0:r1c:*:*:*:*:*:* |