How severe is CVE-2009-4105?

CVE-2009-4105 has a CVSS 2.0 base score of 3.5, rated low severity.

Is CVE-2009-4105 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-4105?

CVE-2009-4105 affects Typsoft Typsoft Ftp Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-4105?

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

When was CVE-2009-4105 published?

CVE-2009-4105 was published on 2009-11-29 and last updated on 2026-06-16.

CVE-2009-4105

CVE-2009-4105 is a low-severity vulnerability in Typsoft Typsoft Ftp Server with a CVSS 2.0 base score of 3.5. 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: Low (CVSS 2.0 base score 3.5)
EPSS exploit prediction: 4% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Typsoft Typsoft Ftp Server
Published: 2009-11-29
Last modified: 2026-06-16

Description

TYPSoft FTP Server 1.10 allows remote authenticated users to cause a denial of service (crash) by sending an APPE (append) command immediately followed by a DELE (delete) command without sending file data in between these two commands.

Frequently asked questions

What is CVE-2009-4105?: TYPSoft FTP Server 1.10 allows remote authenticated users to cause a denial of service (crash) by sending an APPE (append) command immediately followed by a DELE (delete) command without sending file data in between these two commands.
How severe is CVE-2009-4105?: CVE-2009-4105 has a CVSS 2.0 base score of 3.5, rated low severity.
Is CVE-2009-4105 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-4105?: CVE-2009-4105 affects Typsoft Typsoft Ftp Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-4105?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-4105 published?: CVE-2009-4105 was published on 2009-11-29 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:typsoft:typsoft_ftp_server:1.10:*:*:*:*:*:*:*

More vulnerabilities in Typsoft Typsoft Ftp Server

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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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