How severe is CVE-2010-3706?

CVE-2010-3706 has a CVSS 2.0 base score of 5.5, rated medium severity.

Is CVE-2010-3706 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-3706?

CVE-2010-3706 primarily affects Dovecot. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-3706?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2010-3706 published?

CVE-2010-3706 was published on 2010-10-06 and last updated on 2026-06-16.

CVE-2010-3706

CVE-2010-3706 is a medium-severity vulnerability in Dovecot with a CVSS 2.0 base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

Severity: Medium (CVSS 2.0 base score 5.5)
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Dovecot
Published: 2010-10-06
Last modified: 2026-06-16

Description

plugins/acl/acl-backend-vfile.c in Dovecot 1.2.x before 1.2.15 and 2.0.x before 2.0.5 interprets an ACL entry as a directive to add to the permissions granted by another ACL entry, instead of a directive to replace the permissions granted by another ACL entry, in certain circumstances involving the private namespace of a user, which allows remote authenticated users to bypass intended access restrictions via a request to read or modify a mailbox.

Frequently asked questions

What is CVE-2010-3706?: plugins/acl/acl-backend-vfile.c in Dovecot 1.2.x before 1.2.15 and 2.0.x before 2.0.5 interprets an ACL entry as a directive to add to the permissions granted by another ACL entry, instead of a directive to replace the permissions granted by another ACL entry, in certain circumstances involving the private namespace of a user, which allows remote authenticated users to bypass intended access restrictions via a request to read or modify a mailbox.
How severe is CVE-2010-3706?: CVE-2010-3706 has a CVSS 2.0 base score of 5.5, rated medium severity.
Is CVE-2010-3706 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-3706?: CVE-2010-3706 primarily affects Dovecot. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-3706?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-3706 published?: CVE-2010-3706 was published on 2010-10-06 and last updated on 2026-06-16.

References

Affected products (20)

cpe:2.3:a:dovecot:dovecot:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:1.2.3:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:1.2.4:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:1.2.5:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:1.2.6:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:1.2.7:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:1.2.8:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:1.2.9:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:1.2.10:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:1.2.11:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:1.2.12:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:1.2.13:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:1.2.14:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:2.0.3:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:2.0.4:*:*:*:*:*:*:*

More vulnerabilities in Dovecot

CVE-2019-11500 — Critical (CVSS 9.8): In Dovecot before 2.2.36.4 and 2.3.x before 2.3.7.2 (and Pigeonhole before 0.5.7.2), protocol processing can fail for…
CVE-2022-30550 — High (CVSS 8.8): An issue was discovered in the auth component in Dovecot 2.2 and 2.3 before 2.3.20. When two passdb configuration…
CVE-2019-7524 — High (CVSS 8.8): In Dovecot before 2.2.36.3 and 2.3.x before 2.3.5.1, a local attacker can cause a buffer overflow in the indexer-worker…
CVE-2026-24031 — High (CVSS 7.7): Dovecot SQL based authentication can be bypassed when auth_username_chars is cleared by admin. This vulnerability…
CVE-2019-3814 — High (CVSS 7.7): It was discovered that Dovecot before versions 2.2.36.1 and 2.3.4.1 incorrectly handled client certificates. A remote…
CVE-2026-27858 — High (CVSS 7.5): Attacker can send a specifically crafted message before authentication that causes managesieve to allocate large amount…

All CVEs affecting Dovecot →

Other CWE-264 (Permissions, Privileges, and Access Controls) vulnerabilities

CVE-2016-8363 — Critical (CVSS 10.0): An issue was discovered in Moxa OnCell OnCellG3470A-LTE, AWK-1131A/3131A/4131A Series, AWK-3191 Series, AWK-5232/6232…
CVE-2016-7457 — Critical (CVSS 10.0): VMware vRealize Operations (aka vROps) 6.x before 6.4.0 allows remote authenticated users to gain privileges, or halt…
CVE-2015-7425 — Critical (CVSS 10.0): The Data Protection component in the VMware vSphere GUI in IBM Tivoli Storage Manager for Virtual Environments: Data…
CVE-2015-8267 — Critical (CVSS 10.0): The PasswordReset.Controllers.ResetController.ChangePasswordIndex method in PasswordReset.dll in Dovestones AD Self…
CVE-2015-7919 — Critical (CVSS 10.0): SearchBlox 8.3 before 8.3.1 allows remote attackers to write to the config file, and consequently cause a denial of…
CVE-2015-7071 — Critical (CVSS 10.0): The File Bookmark component in Apple OS X before 10.11.2 allows attackers to bypass a sandbox protection mechanism for…

Browse all CWE-264 (Permissions, Privileges, and Access Controls) vulnerabilities →