Which products and versions are affected by CVE-2001-0550?

Affected: Ftpd-Bsd (David Madore) versions 0.3.2, 0.3.3; Wu-Ftpd (Washington University) versions 2.5.0, 2.6.0, 2.6.1. The full list is in the CVE brief.

Is CVE-2001-0550 being exploited in the wild?

It is exploited in the wild, listed in Industry KEV feed since Jun 20, 2017.

Is CVE-2001-0550 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-2001-0550?

Public exploit code is available.

Is there a fix for CVE-2001-0550?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2001-0550 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2001-0550

HighExploitedPublic exploit

wu-ftpd 2.6.1 allows remote attackers to execute arbitrary commands via a "~{" argument to commands such as CWD, which is not properly handled by the glob function (ftpglob).

Published Apr 30, 2001 · Updated Aug 8, 2024

Key Facts

Patch immediately

CVE-2001-0550 is a high-severity vulnerability (CVSS 7.5 v2) affecting Ftpd-Bsd (David Madore), Wu-Ftpd (Washington University).
It is exploited in the wild, listed in Industry KEV feed since Jun 20, 2017. Public exploit code is available.
EPSS estimates a 75% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v2

7.5

AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS (30-day exploit likelihood)

75%

Higher than 99.4% of all scored CVEs

Exploited in the wild

Yes

1 catalog listing

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2001-0550 brief as a PDF

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Description

wu-ftpd 2.6.1 allows remote attackers to execute arbitrary commands via a "~{" argument to commands such as CWD, which is not properly handled by the glob function (ftpglob).

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
Industry KEV feed	Jun 20, 2017	n/a	Not reported

Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Affected Products

5 affected entries in total

Product	Affected versions	Fixed in
Ftpd-BsdDavid Madore	0.3.2, 0.3.3	n/a
Wu-FtpdWashington University	2.5.0, 2.6.0, 2.6.1	n/a

Timeline

Publicly disclosed
Apr 30, 2001
Added to Industry KEV feed
Jun 20, 2017
Last updated
Aug 8, 2024

References

13 more references in the full CVE brief

FAQ

Common Questions.

wu-ftpd 2.6.1 allows remote attackers to execute arbitrary commands via a "~{" argument to commands such as CWD, which is not properly handled by the glob function (ftpglob).
Affected: Ftpd-Bsd (David Madore) versions 0.3.2, 0.3.3; Wu-Ftpd (Washington University) versions 2.5.0, 2.6.0, 2.6.1. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Jun 20, 2017.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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