CVE-2005-0546

Multiple buffer overflows in Cyrus IMAPd before 2.2.11 may allow attackers to execute arbitrary code via (1) an off-by-one error in the imapd annotate extension, (2) an off-by-one error in "cached header handling," (3) a stack-based buffer overflow in fetchnews, or (4) a stack-based buffer overflow in imapd.

Published: 2005-05-02 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2005-0546 is rated Moderate Risk (63.8/100): CVSS High severity, with medium exploitation likelihood (EPSS 4.24%). EPSS rose +2.43% over the last day, indicating growing attacker interest. 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-2005-0546

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 1.82% 4.24% +2.43%
2 2025-07-05 1.85% 1.82% -0.03%
3 2025-03-30 — 1.85% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2005-0546

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-2005-0546

OS Trackers for CVE-2005-0546

vendor priority summary link
gentoo normal CVE-2005-0546: 1 GLSA(s) (200502-29), 1 atom(s) (net-mail/cyrus-imapd); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2005-0546
redhat medium — https://access.redhat.com/security/cve/CVE-2005-0546
ubuntu medium CVE-2005-0546 medium priority: Ubuntu including 1 source packages (cyrus21-imapd), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 3, needs-triage 1. https://ubuntu.com/security/CVE-2005-0546

Affected software / configurations for CVE-2005-0546

Vendor Product Version Raw CPE
cyrus imapd 2.0.17 cpe:2.3:a:cyrus:imapd:2.0.17:*:*:*:*:*:*:*
cyrus imapd 2.1.16 cpe:2.3:a:cyrus:imapd:2.1.16:*:*:*:*:*:*:*
cyrus imapd 2.1.17 cpe:2.3:a:cyrus:imapd:2.1.17:*:*:*:*:*:*:*
cyrus imapd 2.1.18 cpe:2.3:a:cyrus:imapd:2.1.18:*:*:*:*:*:*:*
cyrus imapd 2.2.10 cpe:2.3:a:cyrus:imapd:2.2.10:*:*:*:*:*:*:*

References for CVE-2005-0546

cvelogic Threat Intelligence