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Monday, December 8, 2025
Medium Published: Jan 11, 1999 Modified: Apr 03, 2025

CVE-1999-0063

5 CVSS
0 5 10
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
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Description

Cisco IOS 12.0 and other versions can be crashed by malicious UDP packets to the syslog port.

CVSS Vector Details

Attack Vector Network
Attack Complexity Low
Confidentiality None
Integrity None
Availability P

Affected Software Configurations

  • o cisco ios 11.3aa * * * * * * *
  • o cisco ios 11.3db * * * * * * *
  • o cisco ios 12.0 * * * * * * *
  • o cisco ios 12.0\(1\)w * * * * * * *
  • o cisco ios 12.0\(1\)xa3 * * * * * * *
  • o cisco ios 12.0\(1\)xb * * * * * * *
  • o cisco ios 12.0\(1\)xe * * * * * * *
  • o cisco ios 12.0\(2\)xc * * * * * * *
  • o cisco ios 12.0\(2\)xd * * * * * * *
  • o cisco ios 12.0db * * * * * * *

Weaknesses (CWE)

  • NVD-CWE-Other