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CVE-2009-2863
Race condition in the Firewall Authentication Proxy feature in Cisco IOS 12.0 through 12.4 allows remote attackers to bypass…
High7.1EPSS 2.5%
- Published
- Updated
- Reserved
- Assigned by
- cisco
Description
Race condition in the Firewall Authentication Proxy feature in Cisco IOS 12.0 through 12.4 allows remote attackers to bypass authentication, or bypass the consent web page, via a crafted request, aka Bug ID CSCsy15227.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.1 | AV:N/AC:M/Au:N/C:C/I:N/A:N |
- EPSS (exploitation in 30 days)
- 2.5% · top 15% of all CVEs (4 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.
Weakness
Affected products
n/a
- affected n/a
References (6)
- 36491 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 1022935 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- ciscoios-authenticationproxy-sec-bypass(53453) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- http://tools.cisco.com/security/center/viewAlert.x?alertId=18882 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 58340 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 20090923 Cisco IOS Software Authentication Proxy Vulnerability (opens in a new tab)vendor-advisoryx_refsource_CISCOx_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)
- 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://trackcve.app/cve/CVE-2009-2863)Record last updated .