CVE-2020-3258
CRITICALCisco IOS - Remote Code Execution or Denial of Service
Title source: llmDescription
Multiple vulnerabilities in Cisco IOS Software for Cisco 809 and 829 Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected Grid Routers (CGR1000) could allow an unauthenticated, remote attacker or an authenticated, local attacker to execute arbitrary code on an affected system or cause an affected system to crash and reload. For more information about these vulnerabilities, see the Details section of this advisory.
References (1)
Core 1
Core References
Patch, Vendor Advisory vendor-advisory
x_refsource_cisco
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-iot-rce-xYRSeMNH
Scores
CVSS v3
9.8
EPSS
0.0932
EPSS Percentile
92.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-119
Status
published
Products (3)
cisco/ios
15.8\(3\)m2
cisco/ios
15.8\(9\)
cisco/ios
15.9
Published
Jun 03, 2020
Tracked Since
Feb 18, 2026