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.

Published: 2001-07-02 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2001-0443 is rated Moderate Risk (57.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.79%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2001-0443

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.91% 1.79% +0.89%
2 2025-09-13 0.99% 0.91% -0.08%
3 2025-03-30 — 0.99% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2001-0443

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2001-0443

Affected software / configurations for CVE-2001-0443

Vendor Product Version Raw CPE
qpc_software qvt_net 5.0 cpe:2.3:a:qpc_software:qvt_net:5.0:*:*:*:*:*:*:*
qpc_software qvt_term_plus 5.0 cpe:2.3:a:qpc_software:qvt_term_plus:5.0:*:*:*:*:*:*:*

References for CVE-2001-0443

cvelogic Threat Intelligence