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CVE-2003-0512
Cisco IOS 12.2 and earlier generates a "% Login invalid" message instead of prompting for a password when an invalid username is provided,…
Medium5.0EPSS 3.2%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Cisco IOS 12.2 and earlier generates a "% Login invalid" message instead of prompting for a password when an invalid username is provided, which allows remote attackers to identify valid usernames on the system and conduct brute force password guessing, as reported for the Aironet Bridge.
Timeline
ID reserved
By mitre
- 22 days later
· 22 days later
Published
- 21 years later
· 21 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
- EPSS (exploitation in 30 days)
- 3.2% · top 12% of all CVEs (9 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
Affected products
n/a
- affected n/a
References (5)
- http://www.vigilante.com/inetsecurity/advisories/VIGILANTE-2003002.htm (opens in a new tab)x_refsource_MISCx_transferred
- 20030724 Enumerating Locally Defined Users in Cisco IOS (opens in a new tab)vendor-advisoryx_refsource_CISCOx_transferred
- oval:org.mitre.oval:def:5824 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 20030728 Cisco Aironet AP1100 Valid Account Disclosure Vulnerability (opens in a new tab)mailing-listx_refsource_VULNWATCHx_transferred
- VU#886796 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2003-0506 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2003-0512)Record last updated .