Vulnerability Monitor

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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.

Security Impact Summary

CVE-2007-4430 is a security vulnerability that . Impacting 5 products from cisco, from cisco, from cisco and 2 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2007, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.

Published

2007-08-20T19:17:00.000

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-20
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	cisco	cli	*	Yes
Operating System	cisco	cbos	*	Yes
Operating System	cisco	cbos	12.1	Yes
Operating System	cisco	cbos	12.2	Yes
Operating System	cisco	ids	*	Yes
Operating System	cisco	ios	10.0	Yes
Operating System	cisco	ios	10.3	Yes
Operating System	cisco	ios	11.0	Yes
Operating System	cisco	ios	11.1	Yes
Operating System	cisco	ios	11.2	Yes
Operating System	cisco	ios	12.0	Yes
Operating System	cisco	ios	12.1	Yes
Operating System	cisco	ios	12.2	Yes
Operating System	cisco	ios	12.3	Yes
Operating System	cisco	ios	12.4	Yes
Operating System	cisco	ios_xr	*	Yes
Operating System	cisco	ios_xr	2.0	Yes
Operating System	cisco	ios_xr	3.0	Yes
Operating System	cisco	ios_xr	3.1	Yes
Operating System	cisco	ios_xr	3.2	Yes
Operating System	cisco	ios_xr	3.3	Yes
Operating System	cisco	ios_xr	3.4	Yes

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 ([email protected])
http://secunia.com/advisories/26798 Vendor Advisory ([email protected])
http://www.cisco.com/en/US/products/products_security_response09186a00808bb91c.html ([email protected])
http://www.heise-security.co.uk/news/94526/ ([email protected])
http://www.securityfocus.com/bid/25352 ([email protected])
http://www.securitytracker.com/id?1018685 ([email protected])
http://www.vupen.com/english/advisories/2007/3136 Vendor Advisory ([email protected])
https://puck.nether.net/pipermail/cisco-nsp/2007-August/043002.html ([email protected])
https://puck.nether.net/pipermail/cisco-nsp/2007-August/043010.html ([email protected])
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 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/26798 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.cisco.com/en/US/products/products_security_response09186a00808bb91c.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.heise-security.co.uk/news/94526/ (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/25352 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id?1018685 (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2007/3136 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://puck.nether.net/pipermail/cisco-nsp/2007-August/043002.html (af854a3a-2127-422b-91ae-364da2661108)
https://puck.nether.net/pipermail/cisco-nsp/2007-August/043010.html (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cisco's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.