CVE-2003-0190
OpenSSH-portable (OpenSSH) 3.6.1p1 and earlier with PAM support enabled immediately sends an...
CVE-2003-0190 is a medium vulnerability (CVSS 5.0) in Openbsd Openssh, published May 2, 2003. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 76.8%, the 99th percentile. Fixed in openssh 1:3.8.1p1-8.sarge.4.
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2003-0190- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-203
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2003-0190- Updated
- 2026-11-02
EUVDEUVD-2003-0186 No score
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.
- Record
EUVD-2003-0186- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-32j7-fc74-pjwq No score
OpenSSH-portable (OpenSSH) 3.6.1p1 and earlier with PAM support enabled immediately sends an...
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.
- Record
GHSA-32j7-fc74-pjwq- Weakness
- CWE-203
- Updated
- 2026-11-02
OSV No score
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.
- Record
CVE-2003-0190- Updated
- 2026-11-02
OSVDEBIAN-CVE-2003-0190 No score
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.
- Record
DEBIAN-CVE-2003-0190- Updated
- 2026-11-02
Affected products
Affected packages
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | OpenSSH/PAM 3.6.1p1 - Remote Users Discovery Tool | 2003-04-30 |
| Exploit-DB | OpenSSH/PAM 3.6.1p1 - 'gossh.sh' Remote Users Ident | 2003-05-02 |
| Exploit-DB | Portable OpenSSH 3.6.1p-PAM/4.1-SuSE - Timing Attack | 2007-02-13 |
| Metasploit | SSH Username Enumeration |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, Exploit-DB, GitHub Advisories, Metasploit, NVD, OSV |
References
redhat.com/support/errata/RHSA-2003-222.html
marc.info?l=bugtraq&m=105172058404810&w=2
securityfocus.com/bid/7467
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A445
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lab.mediaservice.net/advisory/2003-01-openssh.txt
turbolinux.com/security/TLSA-2003-31.txt
lists.grok.org.uk/pipermail/full-disclosure/2003-April/004815.html
cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
nvd.nist.gov/vuln/detail/CVE-2003-0190
github.com/advisories/GHSA-32j7-fc74-pjwq
security-tracker.debian.org/tracker/CVE-2003-0190