Is CVE-2007-5467 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2007-5467, but active exploitation has not been confirmed.

Can CVE-2007-5467 be exploited remotely?

Yes. CVE-2007-5467 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2007-5467?

CVE-2007-5467 has a CVSS score of 10.0 (CRITICAL).

HOME VULNERABILITIESCVE-2007-5467

CRITICALPOC

CVE-2007-5467

CWE-189Published: October 15, 2007· Updated: Jun 16, 2026

10.0

CVSS v3.1

Official Description

Integer overflow in eXtremail 2.1.1 and earlier allows remote attackers to cause a denial of service, and possibly execute arbitrary code, via a long USER command containing "%s" sequences to the pop3 port (110/tcp), which are expanded to "%%s" before being used in the memmove function, possibly due to an incomplete fix for CVE-2001-1078.

NVD Source

Technical Analysis

CVE-2007-5467 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-2007-5467. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.