CVE-2005-2105
Cisco IOS 12.2T through 12.4 allows remote attackers to bypass Authentication, Authorization, and...
Cisco IOS 12.2T through 12.4 allows remote attackers to bypass Authentication, Authorization, and Accounting (AAA) RADIUS authentication, if the fallback method is set to none, via a long username.
Exploit likelihood
What each source reports
NVD Score used
Cisco IOS 12.2T through 12.4 allows remote attackers to bypass Authentication, Authorization, and Accounting (AAA) RADIUS authentication, if the fallback method is set to none, via a long username.
- Record
CVE-2005-2105- CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
Cisco IOS 12.2T through 12.4 allows remote attackers to bypass Authentication, Authorization, and Accounting (AAA) RADIUS authentication, if the fallback method is set to none, via a long username.
- Record
CVE-2005-2105- Updated
- 2026-11-02
EUVDEUVD-2005-2106 No score
Cisco IOS 12.2T through 12.4 allows remote attackers to bypass Authentication, Authorization, and Accounting (AAA) RADIUS authentication, if the fallback method is set to none, via a long username.
- Record
EUVD-2005-2106- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-x65w-rc3c-c7r6 No score
Cisco IOS 12.2T through 12.4 allows remote attackers to bypass Authentication, Authorization, and...
Cisco IOS 12.2T through 12.4 allows remote attackers to bypass Authentication, Authorization, and Accounting (AAA) RADIUS authentication, if the fallback method is set to none, via a long username.
- Record
GHSA-x65w-rc3c-c7r6- 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-2005-2105 is a high vulnerability (CVSS 7.5) in Cisco Ios, published July 1, 2005. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.59%, the 85th percentile. No source names a fixed version.
References
cisco.com/warp/public/707/cisco-sa-20050629-aaa.shtml
securitytracker.com/alerts/2005/Jun/1014330.html
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5756
exchange.xforce.ibmcloud.com/vulnerabilities/21190
nvd.nist.gov/vuln/detail/CVE-2005-2105
github.com/advisories/GHSA-x65w-rc3c-c7r6