What is CVE-2010-2620?

CVE-2010-2620 is a vulnerability in Open-Ftpd, classified under Improper Authentication. Published 2010-07-02.

Is CVE-2010-2620 known to be exploited?

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

Auth bypass in Open-Ftpd

CVE-2010-2620

Open&Compact FTP Server (Open-FTPD) 1.2 and earlier allows remote attackers to bypass authentication by sending (1) LIST, (2) RETR, (3) STOR, or other commands without performing the required login steps first.

Vulnerability class: Broken Authentication

Published 2010-07-02 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 9.3 (High). Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.296 (98.1th percentile), scored 2026-10-07.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.296 · newest: 0.296 · change: 0.000

Affected products

Open-Ftpd — versions 1.0

Weakness classification (CWE)

CWE-287 — Improper Authentication

Public proof-of-concept exploits

rapid7/metasploit-framework

References

secunia.com/advisories/40284 (third-party-advisory, Vendor Advisory)
www.exploit-db.com/exploits/13932 (Exploit, exploit)

Frequently asked questions

What is CVE-2010-2620?: CVE-2010-2620 is a vulnerability in Open-Ftpd, classified under Improper Authentication. Published 2010-07-02.
Is CVE-2010-2620 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.