What’s Vulnerable › Vulnerabilities

CVE-1999-0160

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 1997-10-01 · updated 2026-06-16

Description

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

Affected products

• Cisco IOS: 4.1, 9.1, 10.3, 11.0, 11.1, 11.2 (+1)

References

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

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