CVE-2001-0861

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2001-12-06 · updated 2026-06-16

Description

Cisco 12000 with IOS 12.0 and line cards based on Engine 2 and earlier allows remote attackers to cause a denial of service (CPU consumption) by flooding the router with traffic that generates a large number of ICMP Unreachable replies.

Affected products

Cisco 12000 Router: all versions

References

http://www.ciac.org/ciac/bulletins/m-018.shtml
http://www.cisco.com/warp/public/707/GSR-unreachables-pub.shtml
http://www.osvdb.org/794
http://www.securityfocus.com/bid/3534
https://exchange.xforce.ibmcloud.com/vulnerabilities/7536
http://www.ciac.org/ciac/bulletins/m-018.shtml
http://www.cisco.com/warp/public/707/GSR-unreachables-pub.shtml
http://www.osvdb.org/794
http://www.securityfocus.com/bid/3534
https://exchange.xforce.ibmcloud.com/vulnerabilities/7536

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