CVE-2004-0590

FreeS/WAN 1.x and 2.x, and other related products including superfreeswan 1.x, openswan 1.x before 1.0.6, openswan 2.x before 2.1.4, and strongSwan before 2.1.3, allows remote attackers to authenticate using spoofed PKCS#7 certificates in which a self-signed certificate identifies an alternate Certificate Authority (CA) and spoofed issuer and subject.

Published: 2004-12-06 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2004-0590 is rated Moderate Risk (62.9/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 0.58%). 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-2004-0590

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 0.93% 0.58% -0.35%
2 2025-03-29 0.62% 0.93% +0.31%
3 2024-12-17 — 0.62% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2004-0590

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2004-0590

OS Trackers for CVE-2004-0590

vendor priority summary link
gentoo normal CVE-2004-0590: 1 GLSA(s) (200406-20), 4 atom(s) (net-misc/freeswan, net-misc/openswan, net-misc/strongswan, net-misc/super-freeswan); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2004-0590
suse medium — https://www.suse.com/security/cve/CVE-2004-0590/

Affected software / configurations for CVE-2004-0590

Vendor Product Version Raw CPE
frees_wan frees_wan 1 cpe:2.3:a:frees_wan:frees_wan:1:*:*:*:*:*:*:*
frees_wan frees_wan 2 cpe:2.3:a:frees_wan:frees_wan:2:*:*:*:*:*:*:*
frees_wan super_frees_wan 1 cpe:2.3:a:frees_wan:super_frees_wan:1:*:*:*:*:*:*:*
openswan openswan 1 cpe:2.3:a:openswan:openswan:1:*:*:*:*:*:*:*
openswan openswan 2 cpe:2.3:a:openswan:openswan:2:*:*:*:*:*:*:*
strongswan strongswan <= 2.1.2 cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:*

References for CVE-2004-0590

cvelogic Threat Intelligence