CVE-2007-5466
CWE-119Published: October 15, 2007· Updated: Jun 16, 2026
Official 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.
Technical Analysis
CVE-2007-5466 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A proof-of-concept (PoC) exploit exists for CVE-2007-5466. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.
From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (22)
Quick Facts
Related CVEs (CWE-119)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2007-5466 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts