CVE-2005-1523

Exp

Format string vulnerability in imap4d server in GNU Mailutils 0.5 and 0.6, and other versions before 0.6.90, allows remote attackers to execute arbitrary code via format string specifiers in the command tag for IMAP commands.

Published: 2005-05-26 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2005-1523 is rated High Exploit Risk (72.8/100): CVSS High severity, with high exploitation likelihood (EPSS 14.09%, 94th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: 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-2005-1523

EDB-ID Source Kind Published Link
1123 exploit_db edb 2005-08-01 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2005-1523

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 23.70% 14.09% -9.60%
2 2025-03-29 14.09% 23.70% +9.60%
3 2025-03-17 14.09%

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2005-1523

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/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:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
10.0 6.4 [email protected]

Weakness enumeration for CVE-2005-1523

OS Trackers for CVE-2005-1523

vendor priority summary link
debian not yet assigned CVE-2005-1523 not yet assigned priority: Debian including 1 source packages (mailutils), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2005-1523
ubuntu medium CVE-2005-1523 medium priority: Ubuntu including 1 source packages (mailutils), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): not-affected 3, needs-triage 1. https://ubuntu.com/security/CVE-2005-1523

Affected software / configurations for CVE-2005-1523

Vendor Product Version Raw CPE
gnu mailutils 0.5 cpe:2.3:a:gnu:mailutils:0.5:*:*:*:*:*:*:*
gnu mailutils 0.6 cpe:2.3:a:gnu:mailutils:0.6:*:*:*:*:*:*:*

References for CVE-2005-1523

cvelogic Threat Intelligence