CVE-2004-0777

Exp

Format string vulnerability in the auth_debug function in Courier-IMAP 1.6.0 through 2.2.1 and 3.x through 3.0.3, when login debugging (DEBUG_LOGIN) is enabled, allows remote attackers to execute arbitrary code.

Published: 2004-10-20 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2004-0777 is rated High Exploit Risk (73.4/100): CVSS High severity, with high exploitation likelihood (EPSS 10.91%, 95th percentile). 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-2004-0777

EDB-ID Source Kind Published Link
432 exploit_db edb 2004-09-02 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2004-0777

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 15.92% 10.91% -5.01%
2 2025-03-30 28.29% 15.92% -12.38%
3 2025-03-29 — 28.29% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2004-0777

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-2004-0777

OS Trackers for CVE-2004-0777

vendor priority summary link
debian medium CVE-2004-0777 medium priority: Debian including 1 source packages (courier), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2004-0777
gentoo high CVE-2004-0777: 1 GLSA(s) (200408-19), 1 atom(s) (net-mail/courier-imap); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2004-0777

Affected software / configurations for CVE-2004-0777

Vendor Product Version Raw CPE
inter7 courier-imap 1.6 cpe:2.3:a:inter7:courier-imap:1.6:*:*:*:*:*:*:*
inter7 courier-imap 1.7 cpe:2.3:a:inter7:courier-imap:1.7:*:*:*:*:*:*:*
inter7 courier-imap 2.0.0 cpe:2.3:a:inter7:courier-imap:2.0.0:*:*:*:*:*:*:*
inter7 courier-imap 2.1 cpe:2.3:a:inter7:courier-imap:2.1:*:*:*:*:*:*:*
inter7 courier-imap 2.1.1 cpe:2.3:a:inter7:courier-imap:2.1.1:*:*:*:*:*:*:*
inter7 courier-imap 2.1.2 cpe:2.3:a:inter7:courier-imap:2.1.2:*:*:*:*:*:*:*
inter7 courier-imap 2.2.0 cpe:2.3:a:inter7:courier-imap:2.2.0:*:*:*:*:*:*:*
inter7 courier-imap 2.2.1 cpe:2.3:a:inter7:courier-imap:2.2.1:*:*:*:*:*:*:*

References for CVE-2004-0777

cvelogic Threat Intelligence