Stack-based buffer overflow in the IMAP service for MailEnable Professional and Enterprise Edition 2.0 through 2.35, Professional Edition 1.6 through 1.84, and Enterprise Edition 1.1 through 1.41 allows remote attackers to execute arbitrary code via a pre-authentication command followed by a crafted parameter and a long string, as addressed by the ME-10025 hotfix.
CVE-2006-6423
- High exploitation likelihood — EPSS 69%
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 99.3%
- KEV
- Not listed
Published
December 12, 2006
Last Modified
April 23, 2026
References (14)
- PSIRT-CNA@flexerasoftwarehttp://secunia.com/advisories/23201
- PSIRT-CNA@flexerasoftwarehttp://secunia.com/secunia_research/2006-73/advisory/
- PSIRT-CNA@flexerasoftwarehttp://securityreason.com/securityalert/2022
- PSIRT-CNA@flexerasoftwarehttp://www.mailenable.com/hotfix/
- PSIRT-CNA@flexerasoftwarehttp://www.securityfocus.com/archive/1/454075/100/0/threaded
- PSIRT-CNA@flexerasoftwarehttp://www.securityfocus.com/bid/21492
- PSIRT-CNA@flexerasoftwarehttps://exchange.xforce.ibmcloud.com/vulnerabilities/30796
- af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/23201
- af854a3a-2127-422b-91ae-364da2661108http://secunia.com/secunia_research/2006-73/advisory/
- af854a3a-2127-422b-91ae-364da2661108http://securityreason.com/securityalert/2022
- af854a3a-2127-422b-91ae-364da2661108http://www.mailenable.com/hotfix/
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/454075/100/0/threaded
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/21492
- af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/30796
Data Freshness Timeline
(refreshed 3× in last 7d / 22× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-13 22:25 UTCEPSS rescore
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- 2026-06-08 14:13 UTCEPSS rescore
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- 2026-05-31 22:28 UTCEPSS rescore
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- 2026-05-31 05:25 UTCEG score recompute
- 2026-05-31 05:25 UTCGHSA enrichment
- 2026-05-31 00:13 UTCEPSS rescore
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- 2026-05-29 13:40 UTCEPSS rescore
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- 2026-05-22 21:15 UTCEPSS rescore
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- 2026-05-18 21:29 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Publicly available exploits
(4 references)Working exploit code is in the public domain (1 Metasploit module) (3 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-16475✓ verifiedFirst seen Apr 30, 2010
MailEnable IMAPD Professional (2.35) - Login Request Buffer Overflow (Metasploit)
Open source ↗ - Exploit-DBEDB-3319✓ verifiedFirst seen Feb 16, 2007
MailEnable IMAPD Enterprise 2.32 < 2.34 - Remote Buffer Overflow
Open source ↗ - Exploit-DBEDB-3320✓ verifiedFirst seen Feb 16, 2007
MailEnable IMAPD Professional 2.35 - Remote Buffer Overflow
Open source ↗ - Metasploitexploit/windows/imap/mailenable_login✓ verifiedFirst seen Dec 11, 2006
MailEnable IMAPD (2.34/2.35) Login Request Buffer Overflow
Open source ↗
Frequently asked(4)
What is CVE-2006-6423?
When was CVE-2006-6423 disclosed?
Is CVE-2006-6423 actively exploited?
How do I remediate CVE-2006-6423?
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