CVE-2021-1460

MEDIUM

Cisco IOx Application Framework - Unauthenticated Denial of Service via Crafted TCP Traffic

Title source: llm
STIX 2.1

Description

A vulnerability in the Cisco IOx Application Framework of Cisco 809 Industrial Integrated Services Routers (Industrial ISRs), Cisco 829 Industrial ISRs, Cisco CGR 1000 Compute Module, and Cisco IC3000 Industrial Compute Gateway could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient error handling during packet processing. An attacker could exploit this vulnerability by sending a high and sustained rate of crafted TCP traffic to the IOx web server on an affected device. A successful exploit could allow the attacker to cause the IOx web server to stop processing requests, resulting in a DoS condition.

References (1)

Core 1
Core References

Scores

CVSS v3 5.3
EPSS 0.0026
EPSS Percentile 49.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-400
Status published
Products (3)
cisco/cgr1000_firmware < 1.12.0.3
cisco/ic3000_industrial_compute_gateway_firmware < 1.3.2
cisco/ios < 15.9\(3\)m3
Published Mar 24, 2021
Tracked Since Feb 18, 2026