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CVE-1999-0160
Some classic Cisco IOS devices have a vulnerability in the PPP CHAP authentication to establish unauthorized PPP connections.
Published: Oct 1, 1997
Modified: Apr 16, 2026
CVSS Metrics
Affected Products (7)
| Vendor | Product | Version |
|---|---|---|
| cisco | ios | 4.1 |
| cisco | ios | 9.1 |
| cisco | ios | 10.3 |
| cisco | ios | 11.0 |
| cisco | ios | 11.1 |
| cisco | ios | 11.2 |
| cisco | ios | 11.2p |
GitHub Security Advisory GHSA-rx39-mff5-f3vv
Some classic Cisco IOS devices have a vulnerability in the PPP CHAP authentication to establish...
References (2)
Risk Scores
CVSS Score
7.5 / 10
EPSS Score
0.49%
Top 34% most likely to be exploited
Threat Score
30.1 / 100
Data Sources
NVD
EPSS
GitHub