CVE-2009-4455
The default configuration of Cisco ASA 5500 Series Adaptive Security Appliance (Cisco ASA) 7.0, 7.1, 7.2, 8.0, 8.1, and 8.2 allows portal traffic to access arbitrary backend servers, which might allow remote authenticated users to bypass intended access restrictions and access unauthorized web sites via a crafted URL obfuscated with ROT13 and a certain encoding. NOTE: this issue was originally reported as a vulnerability related to lack of restrictions to URLs listed in the Cisco WebVPN bookmark component, but the vendor states that "The bookmark feature is not a security feature."
Key facts
- CVSS score
- 6.5 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:L/Au:S/C:P/I:P/A:P- Weakness (CWE)
- CWE-264
- EPSS score
- 1.3% (71th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2009-4422)
- Published
- December 29, 2009
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2009-4422 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- cisco / adaptive security appliance 5500
- cisco / adaptive security appliance 5500
- cisco / adaptive security appliance 5500
- cisco / adaptive security appliance 5500
- cisco / adaptive security appliance 5500
- cisco / adaptive security appliance 5500
References
- http://osvdb.org/61132
- http://secunia.com/advisories/37710(Vendor Advisory)
- http://tools.cisco.com/security/center/viewAlert.x?alertId=19609(Vendor Advisory)
- http://www.securityfocus.com/archive/1/508530/100/0/threaded
- http://www.securitytracker.com/id?1023368
- http://www.vupen.com/english/advisories/2009/3577(Vendor Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
Query CVEs from your AI assistant
The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.
Add the CVE brain