CVE-2007-4430: n/a vulnerability

CVE-2007-4430: Unspecified vulnerability in Cisco IOS 12.0 through 12.4 allows context-dependent attackers to cause a deni...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 14:53 UTC (UTC+00:00)

Security readout for executives and security teams

This issue can make affected Cisco IOS routers restart when processing particular BGP regular-expression queries. A restart forces BGP routing tables to rebuild, which can interrupt connectivity. Risk is highest where untrusted users can run router commands through anonymous Telnet or public Looking Glass access. Exposure is likely limited to Cisco IOS routers running 12.0 through 12.4 where command execution is available to attackers. Environments with anonymous Telnet or Looking Glass access are specifically called out as remotely reachable risk cases. Treat this as a network availability risk, not a data theft issue. Prioritize internet-facing or semi-public routing tools first, because a router reload can create real outage impact during BGP reconvergence. Mitigation focus: Review Cisco's vendor advisory for fixed software and supported workarounds.; Restrict router CLI access to trusted, authenticated administrators only.; Disable anonymous Telnet and unauthenticated Looking Glass access..

Prepared: Jun 29, 2026, 03:52 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2007-4430 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup

Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Aug 20, 2007, 19:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
[cisco-nsp] 20070817 Heads up: "sh ip bgp regexp" crashing routerCVE reference · mailing-list, x_refsource_MLIST
[cisco-nsp] 20070817 About the posting entitled "Heads up: "sh ip bgp regexp" crashing router"CVE reference · mailing-list, x_refsource_MLIST

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.