CVE-2001-0327

iPlanet Web Server Enterprise Edition 4.1 and earlier allows remote attackers to retrieve sensitive data from memory allocation pools, or cause a denial of service, via a URL-encoded Host: header in the HTTP request, which reveals memory in the Location: header that is returned by the server.

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-2001-0327 is rated Moderate Risk (47.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.41%). 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-2001-0327

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 2025-09-29 1.90% 1.41% -0.49%
2 2025-03-30 2.95% 1.90% -1.05%
3 2025-03-29 — 2.95% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2001-0327

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-2001-0327

Affected software / configurations for CVE-2001-0327

Vendor Product Version Raw CPE
iplanet iplanet_web_server <= 4.1_enterprise cpe:2.3:a:iplanet:iplanet_web_server:*:*:*:*:*:*:*:*

References for CVE-2001-0327

cvelogic Threat Intelligence