What is CVE-2001-1280?

CVE-2001-1280 is a vulnerability in Ipswitch Imail. Published 2001-10-12.

Is CVE-2001-1280 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Ipswitch Imail

CVE-2001-1280

POP3 Server for Ipswitch IMail 7.04 and earlier generates different responses to valid and invalid user names, which allows remote attackers to determine users on the system.

Published 2001-10-12 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.022 (81.7th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000

Affected products

Ipswitch Imail — versions 6.0.2, 6.0.6, 7.0.4

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

www.securityfocus.com/bid/3424 (vdb-entry)
archives.neohapsis.com/archives/bugtraq/2001-10/0076.html (mailing-list)
www.ipswitch.com/Support/IMail/news.html

Frequently asked questions

What is CVE-2001-1280?: CVE-2001-1280 is a vulnerability in Ipswitch Imail. Published 2001-10-12.
Is CVE-2001-1280 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.