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CVE-1999-0160

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

7.5 High

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

Exploit likelihood

1.22%Up 0.2 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 7.5

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

Record
CVE-1999-0160
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Updated
2026-11-02
CVE List No score

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

Record
CVE-1999-0160
Updated
2026-11-02
EUVDEUVD-1999-0160 No score

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

Record
EUVD-1999-0160
Updated
2026-11-03
GitHub AdvisoriesGHSA-rx39-mff5-f3vv No score

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

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

Record
GHSA-rx39-mff5-f3vv
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-1999-0160 is a high vulnerability (CVSS 7.5) in Cisco Ios, published October 1, 1997. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.22%, the 68th percentile. No source names a fixed version.

References

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