CVE-1999-0063

Cisco IOS <12.0 - DoS

Title source: llm
STIX 2.1

Description

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

Exploits (1)

exploitdb WRITEUP VERIFIED
by Olaf Selke · textdoshardware
https://www.exploit-db.com/exploits/19531

References (1)

Core 1
Core References
Third Party Advisory, VDB Entry x_refsource_misc
https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0063

Scores

EPSS 0.1205
EPSS Percentile 93.9%

Details

Status published
Products (12)
cisco/ios 11.3aa
cisco/ios 11.3db
cisco/ios 12.0
cisco/ios 12.0\(1\)w
cisco/ios 12.0\(1\)xa3
cisco/ios 12.0\(1\)xb
cisco/ios 12.0\(1\)xe
cisco/ios 12.0\(2\)xc
cisco/ios 12.0\(2\)xd
cisco/ios 12.0db
... and 2 more
Published Jan 11, 1999
Tracked Since Feb 18, 2026