CVE-2001-0971

Exp

Directory traversal vulnerability in ACI 4d webserver allows remote attackers to read arbitrary files via a .. (dot dot) or drive letter (e.g., C:) in an HTTP request.

Published: 2001-08-31 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]

NVD Status：Modified，CVE State: published

View at NVD, CVE.org, EUVD

Conclusion & alert: CVE-2001-0971 is rated Exploit Available (58.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.56%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2001-0971

EDB-ID	Source	Kind	Published	Link
—	nvd_ref	exploit_tag		Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2001-0971

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	2025-08-25	0.54%	0.56%	+0.02%
2	2025-03-30	0.60%	0.54%	-0.06%
3	2025-03-29	—	0.60%	—

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2001-0971

CVSS metrics for this CVE.

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
5.0	2.0	MEDIUM	`AV:N/AC:L/Au:N/C:P/I:N/A:N` 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:N) No integrity impact. Availability impact (A:N) No availability impact.	10.0	2.9	[email protected]

Weakness enumeration for CVE-2001-0971

Affected software / configurations for CVE-2001-0971

Vendor	Product	Version	Raw CPE
aci	4d_webserver	6.5.7	cpe:2.3:a:aci:4d_webserver:6.5.7:::::::*

References for CVE-2001-0971

URL	Tags
http://www.iss.net/security_center/static/7010.php
http://www.securityfocus.com/archive/1/206102	Exploit Vendor Advisory
http://www.securityfocus.com/bid/3209	Vendor Advisory

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