How severe is CVE-2001-0443?

CVE-2001-0443 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2001-0443 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-0443?

CVE-2001-0443 primarily affects Qpc Software Qvt Net. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2001-0443?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2001-0443 published?

CVE-2001-0443 was published on 2001-07-02 and last updated on 2026-06-16.

CVE-2001-0443

CVE-2001-0443 is a high-severity vulnerability in Qpc Software Qvt Net with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Qpc Software Qvt Net
Published: 2001-07-02
Last modified: 2026-06-16

Description

Buffer overflow in QPC QVT/Net Popd 4.20 in QVT/Net 5.0 allows remote attackers to cause a denial of service, and possibly execute arbitrary commands, via (1) a long username, or (2) a long password.

Frequently asked questions

What is CVE-2001-0443?: Buffer overflow in QPC QVT/Net Popd 4.20 in QVT/Net 5.0 allows remote attackers to cause a denial of service, and possibly execute arbitrary commands, via (1) a long username, or (2) a long password.
How severe is CVE-2001-0443?: CVE-2001-0443 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2001-0443 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-0443?: CVE-2001-0443 primarily affects Qpc Software Qvt Net. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2001-0443?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2001-0443 published?: CVE-2001-0443 was published on 2001-07-02 and last updated on 2026-06-16.

References

http://archives.neohapsis.com/archives/bugtraq/2001-04/0227.html

Affected products (2)

cpe:2.3:a:qpc_software:qvt_net:5.0:*:*:*:*:*:*:*
cpe:2.3:a:qpc_software:qvt_term_plus:5.0:*:*:*:*:*:*:*

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CVE-1999-1539 — High (CVSS 7.5): Buffer overflow in FTP server in QPC Software's QVT/Term Plus versions 4.2d and 4.3 and QVT/Net 4.3 allows remote…
CVE-2001-0680 — Medium (CVSS 5.0): Directory traversal vulnerability in ftpd in QPC QVT/Net 4.0 and AVT/Term 5.0 allows a remote attacker to traverse…
CVE-2001-0681 — Medium (CVSS 5.0): Buffer overflow in ftpd in QPC QVT/Net 5.0 and QVT/Term 5.0 allows a remote attacker to cause a denial of service via a…

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