How severe is CVE-2010-3707?

CVE-2010-3707 has a CVSS 2.0 base score of 5.5, rated medium severity.

Is CVE-2010-3707 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-3707?

CVE-2010-3707 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-2010-3707?

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

When was CVE-2010-3707 published?

CVE-2010-3707 was published on 2010-10-06 and last updated on 2026-06-16.

CVE-2010-3707

CVE-2010-3707 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: 3% (84th 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 more specific entries that occur after less specific entries, 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-2010-3707?: 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 more specific entries that occur after less specific entries, which allows remote authenticated users to bypass intended access restrictions via a request to read or modify a mailbox.
How severe is CVE-2010-3707?: CVE-2010-3707 has a CVSS 2.0 base score of 5.5, rated medium severity.
Is CVE-2010-3707 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-3707?: CVE-2010-3707 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-2010-3707?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-3707 published?: CVE-2010-3707 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:*:*:*:*:*:*:*

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