How severe is CVE-2009-1668?

CVE-2009-1668 has a CVSS 2.0 base score of 4.0, rated medium severity.

Is CVE-2009-1668 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-1668?

CVE-2009-1668 affects Typsoft Typsoft Ftp Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-1668?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-1668 published?

CVE-2009-1668 was published on 2009-05-18 and last updated on 2026-06-16.

CVE-2009-1668

CVE-2009-1668 is a medium-severity vulnerability in Typsoft Typsoft Ftp Server with a CVSS 2.0 base score of 4.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 2.0 base score 4.0)
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Typsoft Typsoft Ftp Server
Published: 2009-05-18
Last modified: 2026-06-16

Description

TYPSoft FTP Server 1.11 allows remote attackers to cause a denial of service (CPU consumption) by sending an ABOR (abort) command without an active file transfer.

Frequently asked questions

What is CVE-2009-1668?: TYPSoft FTP Server 1.11 allows remote attackers to cause a denial of service (CPU consumption) by sending an ABOR (abort) command without an active file transfer.
How severe is CVE-2009-1668?: CVE-2009-1668 has a CVSS 2.0 base score of 4.0, rated medium severity.
Is CVE-2009-1668 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-1668?: CVE-2009-1668 affects Typsoft Typsoft Ftp Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-1668?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-1668 published?: CVE-2009-1668 was published on 2009-05-18 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:typsoft:typsoft_ftp_server:1.11:*:*:*:*:*:*:*

More vulnerabilities in Typsoft Typsoft Ftp Server

CVE-2005-3294 — Medium (CVSS 5.0): Typsoft FTP Server 1.11, with "Sub Directory Include" enabled, allows remote attackers to cause a denial of service…
CVE-2004-0252 — Medium (CVSS 5.0): TYPSoft FTP Server 1.10 allows remote attackers to cause a denial of service (CPU consumption) via an empty USER name.
CVE-2002-1354 — Medium (CVSS 5.0): Directory traversal vulnerability in TYPSoft FTP Server 0.99.8 allows local users to list the contents of arbitrary…
CVE-2002-0558 — Medium (CVSS 5.0): Directory traversal vulnerability in TYPSoft FTP server 0.97.1 and earlier allows a remote authenticated user (possibly…
CVE-2001-1156 — Medium (CVSS 5.0): TYPSoft FTP 0.95 allows remote attackers to cause a denial of service (CPU consumption) via a "../../*" argument to (1)…
CVE-2001-0294 — Medium (CVSS 5.0): Directory traversal vulnerability in TYPSoft FTP Server 0.85 allows remote attackers to read arbitrary files via (1) a…

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