CVE-2005-4471

Exp

POP3 service in Avaya Modular Messaging Message Storage Server (MSS) 2.0 SP 4 and earlier allows remote attackers to cause a denial of service (infinite loop) via crafted packets.

Published: 2005-12-22 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2005-4471 is rated High Exploit Risk (61.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.33%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2005-4471

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2005-4471

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 1.86% 1.33% -0.53%
2 2025-03-29 1.33% 1.86% +0.53%
3 2025-03-17 — 1.33% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2005-4471

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-2005-4471

Affected software / configurations for CVE-2005-4471

Vendor Product Version Raw CPE
avaya modular_messaging_message_storage_server <= 2.0_sp_4 cpe:2.3:o:avaya:modular_messaging_message_storage_server:*:*:*:*:*:*:*:*
avaya modular_messaging_message_storage_server 1.1 cpe:2.3:o:avaya:modular_messaging_message_storage_server:1.1:*:*:*:*:*:*:*
avaya modular_messaging_message_storage_server 2.0 cpe:2.3:o:avaya:modular_messaging_message_storage_server:2.0:*:*:*:*:*:*:*

References for CVE-2005-4471

cvelogic Threat Intelligence