CVE-2001-1013

Exp

Apache on Red Hat Linux with with the UserDir directive enabled generates different error codes when a username exists and there is no public_html directory and when the username does not exist, which could allow remote attackers to determine valid usernames on the server.

Published: 2001-09-12 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2001-1013 is rated High Exploit Risk (65.8/100): CVSS Medium severity, with high exploitation likelihood (EPSS 68.12%, 99th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). 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-2001-1013

EDB-ID Source Kind Published Link
21112 exploit_db edb 2001-09-12 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2001-1013

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 71.84% 68.12% -3.72%
2 2025-03-30 67.06% 71.84% +4.77%
3 2025-03-29 — 67.06% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2001-1013

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-2001-1013

OS Trackers for CVE-2001-1013

vendor priority summary link
redhat — — https://access.redhat.com/security/cve/CVE-2001-1013

Affected software / configurations for CVE-2001-1013

Vendor Product Version Raw CPE
redhat linux 7.0 cpe:2.3:o:redhat:linux:7.0:*:*:*:*:*:*:*

References for CVE-2001-1013

cvelogic Threat Intelligence