CVE-2003-0512
Cisco IOS 12.2 and earlier generates a "% Login invalid" message instead of prompting for a...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2003-0512- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-310
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2003-0512- Updated
- 2026-11-02
EUVDEUVD-2003-0506 No score
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.
- Record
EUVD-2003-0506- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-38r2-56qf-x75g No score
Cisco IOS 12.2 and earlier generates a "% Login invalid" message instead of prompting for a...
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.
- Record
GHSA-38r2-56qf-x75g- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2003-0512 is a medium vulnerability (CVSS 5.0) in Cisco Ios, published July 29, 2003. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.20%, the 88th percentile. No source names a fixed version.
References
vigilante.com/inetsecurity/advisories/VIGILANTE-2003002.htm
cisco.com/warp/public/707/cisco-sn-20030724-ios-enum.shtml
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5824
archives.neohapsis.com/archives/vulnwatch/2003-q3/0056.html
kb.cert.org/vuls/id/886796
nvd.nist.gov/vuln/detail/CVE-2003-0512
github.com/advisories/GHSA-38r2-56qf-x75g