CVE-1999-0159

Low CVSS 3.5

Published 1998-08-12 · last changed 2026-06-16

The fix

We hold no Microsoft remediation data for CVE-1999-0159, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.

What it is

Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt (such as a login). This applies to some IOS 9.x, 10.x, and 11.x releases.

Sources

NVD record for CVE-1999-0159

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L