CVE-2004-0903

Stack-based buffer overflow in the writeGroup function in nsVCardObj.cpp for Mozilla Firefox before the Preview Release, Mozilla before 1.7.3, and Thunderbird before 0.8 allows remote attackers to execute arbitrary code via malformed VCard attachments that are not properly handled when previewing a message.

Published: 2005-01-27 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2004-0903 is rated High Risk (68.2/100): CVSS Critical severity, with high exploitation likelihood (EPSS 9.75%, 95th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. 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.

Exploit prediction scoring system (EPSS) score for CVE-2004-0903

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 22.76% 9.75% -13.01%
2 2026-05-30 18.83% 22.76% +3.93%
3 2025-03-30 — 18.83% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2004-0903

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-2004-0903

OS Trackers for CVE-2004-0903

vendor priority summary link
gentoo normal CVE-2004-0903: 1 GLSA(s) (200409-26), 7 atom(s) (mail-client/mozilla-thunderbird, mail-client/mozilla-thunderbird-bin, …); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2004-0903
redhat high — https://access.redhat.com/security/cve/CVE-2004-0903

Affected software / configurations for CVE-2004-0903

Vendor Product Version Raw CPE
mozilla mozilla 1.7 cpe:2.3:a:mozilla:mozilla:1.7:*:*:*:*:*:*:*
mozilla mozilla 1.7.1 cpe:2.3:a:mozilla:mozilla:1.7.1:*:*:*:*:*:*:*
mozilla mozilla 1.7.2 cpe:2.3:a:mozilla:mozilla:1.7.2:*:*:*:*:*:*:*
mozilla thunderbird 0.7 cpe:2.3:a:mozilla:thunderbird:0.7:*:*:*:*:*:*:*
mozilla thunderbird 0.7.1 cpe:2.3:a:mozilla:thunderbird:0.7.1:*:*:*:*:*:*:*
mozilla thunderbird 0.7.2 cpe:2.3:a:mozilla:thunderbird:0.7.2:*:*:*:*:*:*:*
mozilla thunderbird 0.7.3 cpe:2.3:a:mozilla:thunderbird:0.7.3:*:*:*:*:*:*:*
conectiva linux 9.0 cpe:2.3:o:conectiva:linux:9.0:*:*:*:*:*:*:*
conectiva linux 10.0 cpe:2.3:o:conectiva:linux:10.0:*:*:*:*:*:*:*
redhat enterprise_linux 2.1 cpe:2.3:o:redhat:enterprise_linux:2.1:*:advanced_server:*:*:*:*:*
redhat enterprise_linux 2.1 cpe:2.3:o:redhat:enterprise_linux:2.1:*:advanced_server_ia64:*:*:*:*:*
redhat enterprise_linux 2.1 cpe:2.3:o:redhat:enterprise_linux:2.1:*:enterprise_server:*:*:*:*:*
redhat enterprise_linux 2.1 cpe:2.3:o:redhat:enterprise_linux:2.1:*:enterprise_server_ia64:*:*:*:*:*
redhat enterprise_linux 2.1 cpe:2.3:o:redhat:enterprise_linux:2.1:*:workstation:*:*:*:*:*
redhat enterprise_linux 2.1 cpe:2.3:o:redhat:enterprise_linux:2.1:*:workstation_ia64:*:*:*:*:*
redhat enterprise_linux 3.0 cpe:2.3:o:redhat:enterprise_linux:3.0:*:advanced_server:*:*:*:*:*
redhat enterprise_linux 3.0 cpe:2.3:o:redhat:enterprise_linux:3.0:*:enterprise_server:*:*:*:*:*
redhat enterprise_linux 3.0 cpe:2.3:o:redhat:enterprise_linux:3.0:*:workstation_server:*:*:*:*:*
redhat enterprise_linux_desktop 3.0 cpe:2.3:o:redhat:enterprise_linux_desktop:3.0:*:*:*:*:*:*:*
redhat fedora_core core_1.0 cpe:2.3:o:redhat:fedora_core:core_1.0:*:*:*:*:*:*:*
redhat linux 7.3 cpe:2.3:o:redhat:linux:7.3:*:*:*:*:*:*:*
redhat linux 7.3 cpe:2.3:o:redhat:linux:7.3:*:i386:*:*:*:*:*
redhat linux 7.3 cpe:2.3:o:redhat:linux:7.3:*:i686:*:*:*:*:*
redhat linux 9.0 cpe:2.3:o:redhat:linux:9.0:*:i386:*:*:*:*:*
redhat linux_advanced_workstation 2.1 cpe:2.3:o:redhat:linux_advanced_workstation:2.1:*:ia64:*:*:*:*:*
redhat linux_advanced_workstation 2.1 cpe:2.3:o:redhat:linux_advanced_workstation:2.1:*:itanium_processor:*:*:*:*:*
suse suse_linux 1.0 cpe:2.3:o:suse:suse_linux:1.0:*:desktop:*:*:*:*:*
suse suse_linux 8 cpe:2.3:o:suse:suse_linux:8:*:enterprise_server:*:*:*:*:*
suse suse_linux 8.1 cpe:2.3:o:suse:suse_linux:8.1:*:*:*:*:*:*:*
suse suse_linux 8.2 cpe:2.3:o:suse:suse_linux:8.2:*:*:*:*:*:*:*
suse suse_linux 9.0 cpe:2.3:o:suse:suse_linux:9.0:*:*:*:*:*:*:*
suse suse_linux 9.0 cpe:2.3:o:suse:suse_linux:9.0:*:enterprise_server:*:*:*:*:*
suse suse_linux 9.0 cpe:2.3:o:suse:suse_linux:9.0:*:x86_64:*:*:*:*:*
suse suse_linux 9.1 cpe:2.3:o:suse:suse_linux:9.1:*:*:*:*:*:*:*

References for CVE-2004-0903

cvelogic Threat Intelligence