CVE-2007-5134
Published Sep 27, 2007 · Updated Oct 23, 2026
Original summary
Normalized public record · Updated Oct 23, 2026
Cisco Catalyst 6500 and Cisco 7600 series devices use 127/8 IP addresses for Ethernet Out-of-Band Channel (EOBC) internal communication, which might allow remote attackers to send packets to an interface for which network exposure was unintended.
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
Cisco Catalyst 6500 and Cisco 7600 series devices use 127/8 IP addresses for Ethernet Out-of-Band Channel (EOBC) internal communication, which might allow remote attackers to send packets to an interface for which network exposure was unintended.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- LOW
- Confidence
- Not available
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- 1018743 ↗
- 26988 ↗
- ADV-2007-3276 ↗
- 20070927 Re: CAT6500 accessible via 127.0.0.x loopback addresses ↗
- cisco-catalyst-loopback-acl-bypass(36826) ↗
- 25822 ↗
- 20070926 Catalyst 6500 and Cisco 7600 Series Devices Accessible via Loopback Address ↗
- 1018742 ↗
Record history
Published Sep 27, 2007 · Last refreshed Oct 23, 2026