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CVE-2006-5973

15
FAUCET Score

CVE-2006-5973 describes an off-by-one buffer overflow in Dovecot versions 1.0test53 through 1.0.rc14, and potentially others, when index files are used and mmap_disable is set to "yes." This vulnerability allows remote authenticated IMAP or POP3 users to cause a denial of service (crash) through unspecified vectors related to the cache file. The CVSS score of 5.0 indicates a medium severity, with a network attack vector, low complexity, and a partial impact on availability. There is no evidence of active exploitation, no known public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.0CPE matchmatch criteria
cpe:2.3:a:timo_sirainen:dovecot:1.0:*:*:*:*:*:*:*
1.0.alpha1CPE matchmatch criteria
cpe:2.3:a:timo_sirainen:dovecot:1.0.alpha1:*:*:*:*:*:*:*
1.0.alpha2CPE matchmatch criteria
cpe:2.3:a:timo_sirainen:dovecot:1.0.alpha2:*:*:*:*:*:*:*
1.0.alpha3CPE matchmatch criteria
cpe:2.3:a:timo_sirainen:dovecot:1.0.alpha3:*:*:*:*:*:*:*
1.0.alpha4CPE matchmatch criteria
cpe:2.3:a:timo_sirainen:dovecot:1.0.alpha4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.65%
Probability of exploitation in next 30 days
EPSS Percentile
84.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0265 is in the 77th percentile among its peer group of 23,723 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, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

dovecot.org / list/dovecot-news/2006-November/000023.html
dovecot.org / pipermail/dovecot-news/2006-November/000024.html
Patch
secunia.com / advisories/23007
Vendor Advisory
secunia.com / advisories/23150
secunia.com / advisories/23172
secunia.com / advisories/23213
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/30433
issues.rpath.com / browse/RPL-802
novell.com / linux/security/advisories/2006_73_mono.html
securityfocus.com / archive/1/452081/100/0/threaded
securityfocus.com / bid/21183/info
ubuntu.com / usn/usn-387-1
vupen.com / english/advisories/2006/4614