Multiple stack-based buffer overflows in the filter service (aka k9filter.exe) in Blue Coat K9 Web Protection 3.2.44 with Filter 3.2.32 allow (1) remote attackers to execute arbitrary code via a long HTTP Referer header to the K9 Web Protection Administration interface and (2) man-in-the-middle attackers to execute arbitrary code via an HTTP response with a long HTTP version field.
Conclusion & alert: CVE-2007-2952 is rated High Risk (66.6/100): CVSS Critical severity, with high exploitation likelihood (EPSS 11.32%, 94th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize 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 | 2026-04-02 | 14.62% | 11.32% | -3.31% |
| 2 | 2025-09-21 | 18.32% | 14.62% | -3.69% |
| 3 | 2025-06-09 | — | 18.32% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| blue_coat_systems | filter | 3.2.32 | cpe:2.3:a:blue_coat_systems:filter:3.2.32:*:*:*:*:*:*:* |
| blue_coat_systems | k9_web_protection | 3.2.44 | cpe:2.3:a:blue_coat_systems:k9_web_protection:3.2.44:*:*:*:*:*:*:* |