Unrated severityNVD Advisory· Published Dec 6, 2001· Updated Jun 16, 2026

CVE-2001-0861

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Cisco Systems, Inc./12000 Router
cpe:2.3:h:cisco:12000_router:*:*:*:*:*:*:*:*
Cisco Systems, Inc./Cisco iOSllm-fuzzy
Range: 12.0

Patches

Vulnerability mechanics

References

www.cisco.com/warp/public/707/GSR-unreachables-pub.shtmlnvdPatchVendor Advisory
www.ciac.org/ciac/bulletins/m-018.shtmlnvd
www.osvdb.org/794nvd
www.securityfocus.com/bid/3534nvd
exchange.xforce.ibmcloud.com/vulnerabilities/7536nvd

News mentions

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