CVE-2004-1111

Cisco IOS 2.2(18)EW, 12.2(18)EWA, 12.2(14)SZ, 12.2(18)S, 12.2(18)SE, 12.2(18)SV, 12.2(18)SW, and other versions without the "no service dhcp" command, keep undeliverable DHCP packets in the queue instead of dropping them, which allows remote attackers to cause a denial of service (dropped traffic) via multiple undeliverable DHCP packets that exceed the input queue size.

Published: 2005-01-10 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2004-1111 is rated Moderate Risk (46.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.34%). 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-2004-1111

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 3.94% 2.34% -1.60%
2 2026-01-24 2.79% 3.94% +1.15%
3 2025-03-30 — 2.79% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2004-1111

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P 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:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2004-1111

Affected software / configurations for CVE-2004-1111

Vendor Product Version Raw CPE
cisco ios 12.2\(14\)sz cpe:2.3:o:cisco:ios:12.2\(14\)sz:*:*:*:*:*:*:*
cisco ios 12.2\(18\)ew cpe:2.3:o:cisco:ios:12.2\(18\)ew:*:*:*:*:*:*:*
cisco ios 12.2\(18\)ewa cpe:2.3:o:cisco:ios:12.2\(18\)ewa:*:*:*:*:*:*:*
cisco ios 12.2\(18\)s cpe:2.3:o:cisco:ios:12.2\(18\)s:*:*:*:*:*:*:*
cisco ios 12.2\(18\)se cpe:2.3:o:cisco:ios:12.2\(18\)se:*:*:*:*:*:*:*
cisco ios 12.2\(18\)sv cpe:2.3:o:cisco:ios:12.2\(18\)sv:*:*:*:*:*:*:*
cisco ios 12.2\(18\)sw cpe:2.3:o:cisco:ios:12.2\(18\)sw:*:*:*:*:*:*:*
cisco ios 12.2\(20\)ew cpe:2.3:o:cisco:ios:12.2\(20\)ew:*:*:*:*:*:*:*
cisco multiservice_platform_2650 — cpe:2.3:h:cisco:multiservice_platform_2650:*:*:*:*:*:*:*:*
cisco multiservice_platform_2650xm — cpe:2.3:h:cisco:multiservice_platform_2650xm:*:*:*:*:*:*:*:*
cisco multiservice_platform_2651 — cpe:2.3:h:cisco:multiservice_platform_2651:*:*:*:*:*:*:*:*
cisco multiservice_platform_2651xm — cpe:2.3:h:cisco:multiservice_platform_2651xm:*:*:*:*:*:*:*:*
cisco 7200_router — cpe:2.3:h:cisco:7200_router:*:*:*:*:*:*:*:*
cisco 7300_router — cpe:2.3:h:cisco:7300_router:*:*:*:*:*:*:*:*
cisco 7500_router — cpe:2.3:h:cisco:7500_router:*:*:*:*:*:*:*:*
cisco 7600_router — cpe:2.3:h:cisco:7600_router:*:*:*:*:*:*:*:*
cisco catalyst_7600 — cpe:2.3:h:cisco:catalyst_7600:*:*:sup720_msfc3:*:*:*:*:*

References for CVE-2004-1111

cvelogic Threat Intelligence