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Status published
Unknown
CVE-1999-0159
Attackers can crash a Cisco IOS router or device, provided...
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
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Affected Vendor
cisco
View all reports →Affected Software
ios
Vulnerable Versions:
9.1, 11.0\(20.3\), 11.1\(15\)ca, 11.1\(16\), 11.1\(16\)aa, 11.1\(16\)ia, 11.1\(17\)cc, 11.1\(17\)ct, 11.2\(8\)sa3, 11.2\(9\)p, 11.2\(9\)xa, 11.2\(10\), 11.2\(10\)bc, 11.3\(1\), 11.3\(1\)ed, 11.3\(1\)t
Timeline
Official Publish:
September 29th, 1999
Last Modified:
August 27th, 2025
Added to House:
July 17th, 2026
CVSS Vectors
No vector data available
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.