CVE-2004-2766

Webmail in Sun ONE Messaging Server 6.1 and iPlanet Messaging Server 5.2 before 5.2hf2.02 allows remote attackers to obtain unspecified "access" to e-mail via a crafted e-mail message, related to a "session hijacking" issue, a different vulnerability than CVE-2005-2022 and CVE-2006-5486.

Published: 2010-01-28 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2004-2766 is rated Low Risk (32.1/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.23%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2004-2766

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 2025-03-30 0.36% 0.23% -0.13%
2 2025-03-29 0.23% 0.36% +0.13%
3 2025-03-17 — 0.23% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2004-2766

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:P/I:N/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:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2004-2766

Affected software / configurations for CVE-2004-2766

Vendor Product Version Raw CPE
sun iplanet_messaging_server 5.2 cpe:2.3:a:sun:iplanet_messaging_server:5.2:*:*:*:*:*:*:*
sun one_messaging_server 6.1 cpe:2.3:a:sun:one_messaging_server:6.1:*:*:*:*:*:*:*

References for CVE-2004-2766

cvelogic Threat Intelligence