## Description

Some classic Cisco IOS devices have a vulnerability in the PPP CHAP authentication to establish unauthorized PPP connections.

## Severity

Overall Severity: N/A

### CVSS Metrics

Type | Score | Severity | Vector
--- | --- | --- | ---

## Affected Products

### cisco - ios

Affected Versions:

- 4.1

### cisco - ios

Affected Versions:

- 9.1

### cisco - ios

Affected Versions:

- 10.3

### cisco - ios

Affected Versions:

- 11.0

### cisco - ios

Affected Versions:

- 11.1

### cisco - ios

Affected Versions:

- 11.2

### cisco - ios

Affected Versions:

- 11.2p

## References

- http://www.osvdb.org/1099
- http://www.osvdb.org/1099

Neural Processor Active