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CVE-2010-3706

18
FAUCET Score

CVE-2010-3706 describes an access control bypass vulnerability in Dovecot versions 1.2.x before 1.2.15 and 2.0.x before 2.0.5. Specifically, the acl-backend-vfile.c plugin incorrectly interprets ACL entries in a user's private namespace, leading to additive rather than replacement permissions. This allows remote authenticated users to bypass intended access restrictions on mailboxes. The vulnerability has a CVSS score of 5.5 (Medium), indicating a network-based attack with low complexity requiring authentication, potentially leading to partial confidentiality and integrity impacts. Its FAUCET Risk Score is 27/100. There is no evidence of active exploitation, nor is exploit code publicly available in Metasploit or ExploitDB. Community discussion and media coverage for this CVE are minimal, suggesting low public awareness and impact.

Impacted Technologies

VendorProductVersion(s)CPE
1.2.0CPE matchmatch criteria
cpe:2.3:a:dovecot:dovecot:1.2.0:*:*:*:*:*:*:*
1.2.1CPE matchmatch criteria
cpe:2.3:a:dovecot:dovecot:1.2.1:*:*:*:*:*:*:*
1.2.2CPE matchmatch criteria
cpe:2.3:a:dovecot:dovecot:1.2.2:*:*:*:*:*:*:*
1.2.3CPE matchmatch criteria
cpe:2.3:a:dovecot:dovecot:1.2.3:*:*:*:*:*:*:*
1.2.4CPE matchmatch criteria
cpe:2.3:a:dovecot:dovecot:1.2.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.5MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Exploitability Score
8.0
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.13%
Probability of exploitation in next 30 days
EPSS Percentile
80.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0213 is in the 92nd percentile among its peer group of 21,974 CVEs.

Social Chatter

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

Vendor Advisories (1)

redhatCVE-2010-3706Low

Dovecot: Failed to update ACL cache for mailboxes stored in private namespace

Oct 1, 2010

References

lists.opensuse.org / opensuse-security-announce/2010-11/msg00001.html
marc.info
marc.info
secunia.com / advisories/43220
dovecot.org / list/dovecot/2010-October/053450.html
Vendor Advisory
dovecot.org / list/dovecot/2010-October/053451.html
Vendor Advisory
dovecot.org / list/dovecot/2010-October/053452.html
mandriva.com / security/advisories
ubuntu.com / usn/USN-1059-1
vupen.com / english/advisories/2010/2572
Vendor Advisory
vupen.com / english/advisories/2010/2840
vupen.com / english/advisories/2011/0301