CVE-2007-5466

eXtremail <= 2.1.1 - Remote Code Execution via IMAP Buffer Overflow

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 3 public exploits for CVE-2007-5466. PoCs published by mu-b.

AI-analyzed exploit summary This exploit targets a buffer overflow vulnerability in eXtremail <=2.1.1 by sending a crafted payload to the IMAP service on port 143. It attempts to crash the service by sending oversized buffers, demonstrating a denial-of-service condition.

Description

Multiple buffer overflows in eXtremail 2.1.1 and earlier allow remote attackers to (1) have an unknown impact by sending multiple long strings to the IMAP port (143/tcp); (2) execute arbitrary code via a long string in an IMAP AUTHENTICATE PLAIN action, involving the ifParseAuthPlain function; (3) execute arbitrary code via a long LOGIN command to the admin interface port (4501/tcp); or (4) execute arbitrary code via a long string in an IMAP AUTHENTICATE LOGIN (aka CRAM-MD5 authentication) action, involving the ifProcImapAuth1 function.

Exploits (3)

exploitdb WORKING POC VERIFIED
by mu-b · perldoslinux
https://www.exploit-db.com/exploits/4535

This exploit targets a buffer overflow vulnerability in eXtremail <=2.1.1 by sending a crafted payload to the IMAP service on port 143. It attempts to crash the service by sending oversized buffers, demonstrating a denial-of-service condition.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: eXtremail <=2.1.1
No auth needed
Prerequisites: Network access to the target's IMAP service (port 143)
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by mu-b · cremotelinux
https://www.exploit-db.com/exploits/4534

This exploit targets a stack overflow vulnerability in eXtremail's ifParseAuthPlain function, allowing remote code execution via a crafted AUTHENTICATE PLAIN command. It includes shellcode for a bind shell and leverages base64 encoding to bypass input restrictions.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: eXtremail <= 2.1.1
No auth needed
Prerequisites: Network access to the target's IMAP port (143) · Target must be running a vulnerable version of eXtremail
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by mu-b · cremotelinux
https://www.exploit-db.com/exploits/4533

This exploit targets a buffer overflow in the LOGIN command of eXtremail's admin interface, allowing remote code execution. It includes shellcode for a bind shell and is designed for specific versions of eXtremail on Linux.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: eXtremail <= 2.1.1
No auth needed
Prerequisites: Network access to the target's admin interface on port 4501 · Target must be running a vulnerable version of eXtremail
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (11)

Core 11
Core References
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/4533
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/27220
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/4535
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/4534
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/26074
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/37209
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/482293

Scores

EPSS 0.1989
EPSS Percentile 97.1%

Details

CWE
CWE-119
Status published
Products (1)
extremail/extremail < 2.1.1
Published Oct 15, 2007
Tracked Since Feb 18, 2026