CVE-2021-1460: cisco cgr1000_firmware Uncontrolled Resource Consumption
Vulnerability summary
CVE-2021-1460 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in cisco cgr1000_firmware. EPSS estimates a 1.35% chance of exploitation in the next 30 days, higher than 71.1% of scored vulnerabilities.
Timeline
- 24-03-2021PublishedVulnerability first disclosed.
- 08-11-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 2 sources · 2 versions- CVE.orgCNA5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LDiffers
EPSS trend
Probability
1.35%
Chance of exploitation in the next 30 days
Percentile
71%
Versus all other CVEs
30-day change
+0.05 pp
From 1.31% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Cisco4 products
- cgr1000_firmware< 1.12.0.3
- cisco_iosn/a
- ic3000_industrial_compute_gateway< 1.3.2
- ios< 15.9\(3\)m3
1 vendor · 4 products
References
1 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iox-dos-4Fgcjh6Vendor AdvisoryX Refsource CISCO