CVE-2005-2661

Exp

Format string vulnerability in the ParseBannerAndCapability function in main.c for up-imapproxy 1.2.3 and 1.2.4 allows remote IMAP servers to execute arbitrary code via format string specifiers in a banner or capability line.

Published: 2005-10-14 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2005-2661 is rated High Exploit Risk (73.5/100): CVSS High severity, with high exploitation likelihood (EPSS 12.11%, 96th 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-2005-2661

EDB-ID Source Kind Published Link
26340 exploit_db edb 2005-10-10 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2005-2661

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 19.68% 12.11% -7.56%
2 2025-03-30 23.11% 19.68% -3.44%
3 2025-03-29 — 23.11% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2005-2661

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-2005-2661

OS Trackers for CVE-2005-2661

vendor priority summary link
debian high CVE-2005-2661 high priority: Debian including 1 source packages (up-imapproxy), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2005-2661
gentoo normal CVE-2005-2661: 1 GLSA(s) (200603-04), 1 atom(s) (net-mail/up-imapproxy); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2005-2661
ubuntu medium CVE-2005-2661 medium priority: Ubuntu including 1 source packages (up-imapproxy), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 3, needs-triage 1. https://ubuntu.com/security/CVE-2005-2661

Affected software / configurations for CVE-2005-2661

Vendor Product Version Raw CPE
up-imapproxy up-imapproxy 1.2.3 cpe:2.3:a:up-imapproxy:up-imapproxy:1.2.3:*:*:*:*:*:*:*
up-imapproxy up-imapproxy 1.2.4 cpe:2.3:a:up-imapproxy:up-imapproxy:1.2.4:*:*:*:*:*:*:*

References for CVE-2005-2661

cvelogic Threat Intelligence