CVE-2004-0891

Buffer overflow in the MSN protocol handler for gaim 0.79 to 1.0.1 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via an "unexpected sequence of MSNSLP messages" that results in an unbounded copy operation that writes to the wrong buffer.

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-2004-0891 is rated High Risk (66.2/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 5.44%). 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-2004-0891

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 13.23% 5.44% -7.79%
2 2025-03-29 5.44% 13.23% +7.79%
3 2025-03-19 — 5.44% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2004-0891

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-2004-0891

OS Trackers for CVE-2004-0891

vendor priority summary link
redhat high — https://access.redhat.com/security/cve/CVE-2004-0891
suse medium — https://www.suse.com/security/cve/CVE-2004-0891/
ubuntu medium CVE-2004-0891 medium priority: Ubuntu including 1 source packages (gaim), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 3, needs-triage 1. https://ubuntu.com/security/CVE-2004-0891

Affected software / configurations for CVE-2004-0891

Vendor Product Version Raw CPE
rob_flynn gaim 0.10 cpe:2.3:a:rob_flynn:gaim:0.10:*:*:*:*:*:*:*
rob_flynn gaim 0.10.3 cpe:2.3:a:rob_flynn:gaim:0.10.3:*:*:*:*:*:*:*
rob_flynn gaim 0.50 cpe:2.3:a:rob_flynn:gaim:0.50:*:*:*:*:*:*:*
rob_flynn gaim 0.51 cpe:2.3:a:rob_flynn:gaim:0.51:*:*:*:*:*:*:*
rob_flynn gaim 0.52 cpe:2.3:a:rob_flynn:gaim:0.52:*:*:*:*:*:*:*
rob_flynn gaim 0.53 cpe:2.3:a:rob_flynn:gaim:0.53:*:*:*:*:*:*:*
rob_flynn gaim 0.54 cpe:2.3:a:rob_flynn:gaim:0.54:*:*:*:*:*:*:*
rob_flynn gaim 0.55 cpe:2.3:a:rob_flynn:gaim:0.55:*:*:*:*:*:*:*
rob_flynn gaim 0.56 cpe:2.3:a:rob_flynn:gaim:0.56:*:*:*:*:*:*:*
rob_flynn gaim 0.57 cpe:2.3:a:rob_flynn:gaim:0.57:*:*:*:*:*:*:*
rob_flynn gaim 0.58 cpe:2.3:a:rob_flynn:gaim:0.58:*:*:*:*:*:*:*
rob_flynn gaim 0.59 cpe:2.3:a:rob_flynn:gaim:0.59:*:*:*:*:*:*:*
rob_flynn gaim 0.59.1 cpe:2.3:a:rob_flynn:gaim:0.59.1:*:*:*:*:*:*:*
rob_flynn gaim 0.60 cpe:2.3:a:rob_flynn:gaim:0.60:*:*:*:*:*:*:*
rob_flynn gaim 0.61 cpe:2.3:a:rob_flynn:gaim:0.61:*:*:*:*:*:*:*
rob_flynn gaim 0.62 cpe:2.3:a:rob_flynn:gaim:0.62:*:*:*:*:*:*:*
rob_flynn gaim 0.63 cpe:2.3:a:rob_flynn:gaim:0.63:*:*:*:*:*:*:*
rob_flynn gaim 0.64 cpe:2.3:a:rob_flynn:gaim:0.64:*:*:*:*:*:*:*
rob_flynn gaim 0.65 cpe:2.3:a:rob_flynn:gaim:0.65:*:*:*:*:*:*:*
rob_flynn gaim 0.66 cpe:2.3:a:rob_flynn:gaim:0.66:*:*:*:*:*:*:*
rob_flynn gaim 0.67 cpe:2.3:a:rob_flynn:gaim:0.67:*:*:*:*:*:*:*
rob_flynn gaim 0.68 cpe:2.3:a:rob_flynn:gaim:0.68:*:*:*:*:*:*:*
rob_flynn gaim 0.69 cpe:2.3:a:rob_flynn:gaim:0.69:*:*:*:*:*:*:*
rob_flynn gaim 0.70 cpe:2.3:a:rob_flynn:gaim:0.70:*:*:*:*:*:*:*
rob_flynn gaim 0.71 cpe:2.3:a:rob_flynn:gaim:0.71:*:*:*:*:*:*:*
rob_flynn gaim 0.72 cpe:2.3:a:rob_flynn:gaim:0.72:*:*:*:*:*:*:*
rob_flynn gaim 0.73 cpe:2.3:a:rob_flynn:gaim:0.73:*:*:*:*:*:*:*
rob_flynn gaim 0.74 cpe:2.3:a:rob_flynn:gaim:0.74:*:*:*:*:*:*:*
rob_flynn gaim 0.75 cpe:2.3:a:rob_flynn:gaim:0.75:*:*:*:*:*:*:*
rob_flynn gaim 0.78 cpe:2.3:a:rob_flynn:gaim:0.78:*:*:*:*:*:*:*
rob_flynn gaim 0.82 cpe:2.3:a:rob_flynn:gaim:0.82:*:*:*:*:*:*:*
rob_flynn gaim 0.82.1 cpe:2.3:a:rob_flynn:gaim:0.82.1:*:*:*:*:*:*:*
rob_flynn gaim 1.0 cpe:2.3:a:rob_flynn:gaim:1.0:*:*:*:*:*:*:*
rob_flynn gaim 1.0.1 cpe:2.3:a:rob_flynn:gaim:1.0.1:*:*:*:*:*:*:*
gentoo linux — cpe:2.3:o:gentoo:linux:*:*:*:*:*:*:*:*
gentoo linux 1.4 cpe:2.3:o:gentoo:linux:1.4:*:*:*:*:*:*:*
slackware slackware_linux 9.0 cpe:2.3:o:slackware:slackware_linux:9.0:*:*:*:*:*:*:*
slackware slackware_linux 9.1 cpe:2.3:o:slackware:slackware_linux:9.1:*:*:*:*:*:*:*
slackware slackware_linux 10.0 cpe:2.3:o:slackware:slackware_linux:10.0:*:*:*:*:*:*:*
slackware slackware_linux current cpe:2.3:o:slackware:slackware_linux:current:*:*:*:*:*:*:*
ubuntu ubuntu_linux 4.1 cpe:2.3:o:ubuntu:ubuntu_linux:4.1:*:ia64:*:*:*:*:*
ubuntu ubuntu_linux 4.1 cpe:2.3:o:ubuntu:ubuntu_linux:4.1:*:ppc:*:*:*:*:*

References for CVE-2004-0891

cvelogic Threat Intelligence