CVE-2001-1013

mediumpriority · attend · 53EPSS 0.656 · 99 %ileexploit · functionalEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

2 exploits · functional

Likely / severe?

65.6% (99th) EPSS

CVSS 5 · medium

Is it mine?

2 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

5.0

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05mediumAV:N/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v2.05mediumAV:N/AC:L/Au:N/C:P/I:N/A:N/E:Hsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-200USLLM-inferred

exploits (2)

Public proof-of-concept and weaponised exploit code.

EDB-21112RedHat Linux 7.0 Apache - Remote Username Enumerationfunctional · exploit_db
auxiliary/scanner/http/apache_userdir_enumApache "mod_userdir" User Enumerationfunctional · metasploit

affected products (2)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
redhat linux= 7.0nvdUScpe:2.3:o:redhat:linux:*:*:*:*:*:*:*:*

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd NVD CVE.org MITRE

published 2001-09-12modified 2026-06-16

references (12)

External citations — patches, advisories, analysis.

scry

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