Which products and versions are affected by CVE-2010-2620?

Affected: Open-Ftpd versions 1.0. The full list is in the CVE brief.

Is CVE-2010-2620 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2010-2620 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2010-2620?

Public exploit code is available.

Is there a fix for CVE-2010-2620?

Fixed versions are available, including Open-Ftpd <=1.2, Open-Ftpd 1.2.

How urgently should CVE-2010-2620 be patched?

Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

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Emerging threatsCritical

CVE-2010-2620Open-Ftpd Authentication Bypass

Q: What is 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.

Q: How urgently should CVE-2010-2620 be patched?

Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

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.

Published Jul 2, 2010 · Updated Apr 28, 2026

Key Facts

Patch immediately

CVE-2010-2620 is a critical-severity vulnerability (CVSS 9.3 v2) affecting Open-Ftpd.
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 30% probability of exploitation in the next 30 days.
Fixed versions are available, including Open-Ftpd <=1.2, Open-Ftpd 1.2.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Scores

CVSS v2

9.3

AV:N/AC:M/Au:N/C:C/I:C/A:C

EPSS (30-day exploit likelihood)

30%

Higher than 98.1% of all scored CVEs

Exploit maturity

Weaponized

ATLAS score

56/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Not listed

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Weaponized

Public exploit code

Proof-of-concept links

In-the-wild evidence

Reports of active use

Advisories And Exploit References

advisory40284

Description

Affected Products

2 affected entries in total

Product	Affected versions	Fixed in
Open-FtpdOpen-Ftpd	1.0	1.2

Patched Releases

Open-Ftpd

<=1.2

Timeline

Publicly disclosed
Jul 2, 2010
Last updated
Apr 28, 2026

Weakness Type

CWE-287 Improper Authentication

References

1 more references in the full CVE brief

FAQ

Common Questions.

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.
Affected: Open-Ftpd versions 1.0. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Open-Ftpd <=1.2, Open-Ftpd 1.2.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Is CVE-2010-2620 On Your Attack Surface?

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.

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