CVE-2021-1460
MEDIUMCisco IOx Application Framework - Unauthenticated Denial of Service via Crafted TCP Traffic
Title source: llmDescription
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
Vendor Advisory vendor-advisory
x_refsource_cisco
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iox-dos-4Fgcjh6
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