---
title: "CVE-2003-0190: OpenSSH-portable (OpenSSH) 3.6.1p1… | CubePath"
description: "OpenSSH-portable (OpenSSH) 3.6.1p1 and earlier with PAM support enabled immediately sends an error message when a user does not exist…"
language: en
source: https://cubepath.com/security/cve/CVE-2003-0190
---

# CVE-2003-0190: OpenSSH-portable (OpenSSH) 3.6.1p1… | CubePath

## Description

OpenSSH-portable (OpenSSH) 3.6.1p1 and earlier with PAM support enabled immediately sends an error message when a user does not exist, which allows remote attackers to determine valid usernames via a timing attack.

Official description from the CVE record, published by mitre. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2003-0190)

## Key data

### EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score

0.76751 (76.8% probability)

Percentile

99.6%

Scores of

Nov 10, 2026

Model

v2026.06.15

## References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

- [RHSA-2003:222](http://www.redhat.com/support/errata/RHSA-2003-222.html)  (redhat.com) vendor-advisory
- [20030430 OpenSSH/PAM timing attack allows remote users identification](http://marc.info/?l=bugtraq&m=105172058404810&w=2)  (marc.info) mailing-list
- [7467](http://www.securityfocus.com/bid/7467)  (securityfocus.com) vdb-entry
- [20030806 \[OpenPKG-SA-2003.035\] OpenPKG Security Advisory (openssh)](http://marc.info/?l=bugtraq&m=106018677302607&w=2)  (marc.info) mailing-list
- [RHSA-2003:224](http://www.redhat.com/support/errata/RHSA-2003-224.html)  (redhat.com) vendor-advisory
- [oval:org.mitre.oval:def:445](https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A445)  (oval.cisecurity.org) vdb-entry signature
- [lab.mediaservice.net/advisory/2003-01-openssh.txt](http://lab.mediaservice.net/advisory/2003-01-openssh.txt)
- [TLSA-2003-31](http://www.turbolinux.com/security/TLSA-2003-31.txt)  (turbolinux.com) vendor-advisory
- [20030430 OpenSSH/PAM timing attack allows remote users identification](http://lists.grok.org.uk/pipermail/full-disclosure/2003-April/004815.html)  (lists.grok.org.uk) mailing-list
- [cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf](https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf)

## Timeline

1. ID reserved Apr 1, 2003
2. Record published May 2, 2003
3. Record last updated Aug 8, 2024

## Look up another CVE

## About CubePath

CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection.

[Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection)

Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:58 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)