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CVE-2007-4430: cisco cbos Improper Input Validation

CVSS: 5.0v2.0MediumModified
Published 20-08-2007Last modified 07-08-2024
Open JSON

Vulnerability summary

CVE-2007-4430 is a medium (CVSS 5.0) Improper Input Validation vulnerability in cisco cbos. EPSS estimates a 13.28% chance of exploitation in the next 30 days, higher than 96.3% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.0/10
010
Medium · v2.0 (NVD)
EPSS score
13.28%
0%100%
Medium · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1exploit-database

Timeline

  1. 20-08-2007
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

13.28%

Chance of exploitation in the next 30 days

Percentile

96%

Versus all other CVEs

30-day change

0.00 pp

From 13.28% on 21-09-2026

21-09-202621-10-2026
EPSS score
13.28%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • exploit-databasedoshardwareVerified

    Cisco IOS 12.3 - Show IP BGP Regexp Remote Denial of Service

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Cisco3 products
  • cbos12.1 | 12.2
  • ios10.0 | 10.3 | 11.0 | 11.1 | 11.2 | 12.0 | 12.1 | 12.2 | 12.3 | 12.4
  • ios_xr2.0 | 3.0 | 3.1 | 3.2 | 3.3 | 3.4

1 vendor · 3 products

References

9 links