CVE-2007-4430
Unspecified vulnerability in Cisco IOS 12.0 through 12.4 allows context-dependent attackers to cause a denial of service (device restart and BGP routing table rebuild) via certain regular expressions in a "show ip bgp regexp" command. NOTE: unauthenticated remote attacks are possible in environments with anonymous telnet and Looking Glass access.
Key facts
- CVSS score
- 5.0 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P- Weakness (CWE)
- CWE-20
- EPSS score
- 13.3% (96th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2007-4413)
- Published
- August 20, 2007
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2007-4413 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- cisco / cbos
- cisco / cbos
- cisco / cbos
- cisco / cli
- cisco / ids
- cisco / ios
- cisco / ios
- cisco / ios
- cisco / ios
- cisco / ios
- cisco / ios
- cisco / ios
- cisco / ios
- cisco / ios
- cisco / ios
- cisco / ios xr
- cisco / ios xr
- cisco / ios xr
- cisco / ios xr
- cisco / ios xr
- cisco / ios xr
- cisco / ios xr
Certified products that may be affected
1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.
- Cisco Network Convergence System 540, 5500 and 5700 (NCS540, NCS5500, NCS5700) Series running IOS-XR, version 7.4.1 - Cisco Systems, Inc. - Common Criteria NSCIB-CC-23-0597525-CR - active
References
- http://forum.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Network%20Infrastructure&topic=WAN%2C%20Routing%20and%20Switching&CommCmd=MB%3Fcmd%3Ddisplay_location%26location%3D.1ddf7bc9
- http://secunia.com/advisories/26798(Vendor Advisory)
- http://www.cisco.com/en/US/products/products_security_response09186a00808bb91c.html
- http://www.heise-security.co.uk/news/94526/
- http://www.securityfocus.com/bid/25352
- http://www.securitytracker.com/id?1018685
- http://www.vupen.com/english/advisories/2007/3136(Vendor Advisory)
- https://puck.nether.net/pipermail/cisco-nsp/2007-August/043002.html
- https://puck.nether.net/pipermail/cisco-nsp/2007-August/043010.html
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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