CVE-2006-3665

SquirrelMail 1.4.6 and earlier, with register_globals enabled, allows remote attackers to hijack cookies in src/redirect.php via unknown vectors. NOTE: while "cookie theft" is frequently associated with XSS, the vendor disclosure is too vague to be certain of this.

Published: 2006-07-18 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2006-3665 is rated Moderate Risk (40.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.18%). 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.

Exploit prediction scoring system (EPSS) score for CVE-2006-3665

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 2026-06-15 0.34% 1.18% +0.83%
2 2025-12-28 0.39% 0.34% -0.05%
3 2025-12-27 0.39%

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-3665

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
8.6 2.9 [email protected]

Weakness enumeration for CVE-2006-3665

OS Trackers for CVE-2006-3665

vendor priority summary link
ubuntu medium CVE-2006-3665 medium priority: Ubuntu including 1 source packages (squirrelmail), 9 status rows across 9 suites (dapper, edgy, feisty, gutsy, hardy, intrepid, jaunty, karmic, upstream): released 7, ignored 1, needs-triage 1. https://ubuntu.com/security/CVE-2006-3665

Affected software / configurations for CVE-2006-3665

Vendor Product Version Raw CPE
squirrelmail squirrelmail 1.4.6 cpe:2.3:a:squirrelmail:squirrelmail:1.4.6:*:*:*:*:*:*:*

References for CVE-2006-3665

cvelogic Threat Intelligence