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CVE-2004-1011

27
FAUCET Score

CVE-2004-1011 describes a critical stack-based buffer overflow vulnerability in Cyrus IMAP Server versions 2.2.4 through 2.2.8, specifically when the imapmagicplus option is enabled. This flaw allows remote attackers to execute arbitrary code by sending an excessively long PROXY or LOGIN command, impacting various distributions including Red Hat and Ubuntu. With a CVSS score of 10.0, this vulnerability is highly severe, indicating it can be exploited remotely with low attack complexity and no authentication, leading to complete compromise of confidentiality, integrity, and availability. Its FAUCET Risk Score of 93/100 further emphasizes its critical nature. Despite its high severity, there is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage for this vulnerability are minimal, suggesting it has not garnered significant public attention.

Impacted Technologies

VendorProductVersion(s)CPE
2.1.7CPE matchmatch criteria
cpe:2.3:a:carnegie_mellon_university:cyrus_imap_server:2.1.7:*:*:*:*:*:*:*
2.1.9CPE matchmatch criteria
cpe:2.3:a:carnegie_mellon_university:cyrus_imap_server:2.1.9:*:*:*:*:*:*:*
2.1.10CPE matchmatch criteria
cpe:2.3:a:carnegie_mellon_university:cyrus_imap_server:2.1.10:*:*:*:*:*:*:*
2.1.16CPE matchmatch criteria
cpe:2.3:a:carnegie_mellon_university:cyrus_imap_server:2.1.16:*:*:*:*:*:*:*
2.2.0_alphaCPE matchmatch criteria
cpe:2.3:a:carnegie_mellon_university:cyrus_imap_server:2.2.0_alpha:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

AV:N/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.84%
Probability of exploitation in next 30 days
EPSS Percentile
92.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0584 is in the 87th percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

asg.web.cmu.edu / archive/message.php
asg.web.cmu.edu / cyrus/download/imapd/changes.html
marc.info
secunia.com / advisories/13274
security.e-matters.de / advisories/152004.html
security.gentoo.org / glsa/glsa-200411-34.xml
exchange.xforce.ibmcloud.com / vulnerabilities/18198
mandriva.com / security/advisories