CVE-2007-2231

CVE-2007-2231 is a medium-severity vulnerability in Dovecot with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

• Severity: Medium (CVSS 2.0 base score 4.3)
• EPSS exploit prediction: 2% (80th percentile)
• Actively exploited: Not listed in CISA KEV
• Affected product: Dovecot
• Published: 2007-04-25
• Last modified: 2026-06-16

Description

Directory traversal vulnerability in index/mbox/mbox-storage.c in Dovecot before 1.0.rc29, when using the zlib plugin, allows remote attackers to read arbitrary gzipped (.gz) mailboxes (mbox files) via a .. (dot dot) sequence in the mailbox name.

Frequently asked questions

What is CVE-2007-2231?

Directory traversal vulnerability in index/mbox/mbox-storage.c in Dovecot before 1.0.rc29, when using the zlib plugin, allows remote attackers to read arbitrary gzipped (.gz) mailboxes (mbox files) via a .. (dot dot) sequence in the mailbox name.

How severe is CVE-2007-2231?

CVE-2007-2231 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2007-2231 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-2007-2231?

CVE-2007-2231 primarily affects Dovecot. In total, 37 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-2231?

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

When was CVE-2007-2231 published?

CVE-2007-2231 was published on 2007-04-25 and last updated on 2026-06-16.

References

• http://dovecot.org/doc/NEWS
• http://dovecot.org/list/dovecot-cvs/2007-March/008488.html
• http://dovecot.org/list/dovecot-news/2007-March/000038.html
• http://secunia.com/advisories/25072
• http://secunia.com/advisories/30342
• http://www.debian.org/security/2007/dsa-1359
• http://www.novell.com/linux/security/advisories/2007_8_sr.html
• http://www.redhat.com/support/errata/RHSA-2008-0297.html
• http://www.securityfocus.com/archive/1/466168/100/0/threaded
• http://www.securityfocus.com/bid/23552
• http://www.ubuntu.com/usn/usn-487-1
• http://www.vupen.com/english/advisories/2007/1452
• https://exchange.xforce.ibmcloud.com/vulnerabilities/34082
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10995

Affected products (37)

• cpe:2.3:a:dovecot:dovecot:1.0.beta1:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.beta2:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.beta3:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.beta4:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.beta5:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.beta6:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.beta7:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.beta8:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.beta9:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc1:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc2:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc3:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc4:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc5:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc6:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc7:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc8:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc9:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc10:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc11:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc12:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc13:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc14:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc15:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc16:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc17:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc18:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc19:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc20:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc21:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc22:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc23:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc24:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc25:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc26:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc27:*:*:*:*:*:*:*
• cpe:2.3:a:dovecot:dovecot:1.0.rc28:*:*:*:*:*:*:*

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