CVE-2020-3423

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2020-3423
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-09-24 18:15:00 UTC
Updated2023-11-07 03:22:00 UTC
DescriptionA vulnerability in the implementation of the Lua interpreter that is integrated in Cisco IOS XE Software could allow an authenticated, local attacker to execute arbitrary code with root privileges on the underlying Linux operating system (OS) of an affected device. The vulnerability is due to insufficient restrictions on Lua function calls within the context of user-supplied Lua scripts. An attacker with valid administrative credentials could exploit this vulnerability by submitting a malicious Lua script. When this file is processed, an exploitable buffer overflow condition could occur. A successful exploit could allow the attacker to execute arbitrary code with root privileges on the underlying Linux OS of the affected device.

Risk And Classification

Problem Types: CWE-119

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Cisco 1100 Integrated Services Router - All All All
Hardware Cisco 1100 Integrated Services Router - All All All
Hardware Cisco 1101 Integrated Services Router - All All All
Hardware Cisco 1109 Integrated Services Router - All All All
Hardware Cisco 1111x Integrated Services Router - All All All
Hardware Cisco 111x Integrated Services Router - All All All
Hardware Cisco 1120 Integrated Services Router - All All All
Hardware Cisco 1160 Integrated Services Router - All All All
Hardware Cisco 4221 Integrated Services Router - All All All
Hardware Cisco 4221 Integrated Services Router - All All All
Hardware Cisco 4321 Integrated Services Router - All All All
Hardware Cisco 4321 Integrated Services Router - All All All
Hardware Cisco 4331 Integrated Services Router - All All All
Hardware Cisco 4331 Integrated Services Router - All All All
Hardware Cisco 4351 Integrated Services Router - All All All
Hardware Cisco 4351 Integrated Services Router - All All All
Hardware Cisco 4431 Integrated Services Router - All All All
Hardware Cisco 4431 Integrated Services Router - All All All
Hardware Cisco 4451-x Integrated Services Router - All All All
Hardware Cisco 4451-x Integrated Services Router - All All All
Hardware Cisco 4461 Integrated Services Router - All All All
Hardware Cisco 4461 Integrated Services Router - All All All
Hardware Cisco Asr 1001-hx - All All All
Hardware Cisco Asr 1001-hx Router - All All All
Hardware Cisco Asr 1001-hx Router - All All All
Hardware Cisco Asr 1001-x - All All All
Hardware Cisco Asr 1001-x Router - All All All
Hardware Cisco Asr 1001-x Router - All All All
Hardware Cisco Asr 1002-hx - All All All
Hardware Cisco Asr 1002-hx Router - All All All
Hardware Cisco Asr 1002-hx Router - All All All
Hardware Cisco Asr 1002-x - All All All
Hardware Cisco Asr 1002-x Router - All All All
Hardware Cisco Asr 1002-x Router - All All All
Hardware Cisco Asr 1004 - All All All
Hardware Cisco Asr 1004 Router - All All All
Hardware Cisco Asr 1004 Router - All All All
Hardware Cisco Asr 1006 - All All All
Hardware Cisco Asr 1006-x - All All All
Hardware Cisco Asr 1006-x Router - All All All
Hardware Cisco Asr 1006-x Router - All All All
Hardware Cisco Asr 1006 Router - All All All
Hardware Cisco Asr 1006 Router - All All All
Hardware Cisco Asr 1009-x - All All All
Hardware Cisco Asr 1009-x Router - All All All
Hardware Cisco Asr 1009-x Router - All All All
Hardware Cisco Asr 1013 - All All All
Hardware Cisco Asr 1013 Router - All All All
Hardware Cisco Asr 1013 Router - All All All
Hardware Cisco Cbr-8 Converged Broadband Router - All All All
Hardware Cisco Cbr-8 Converged Broadband Router - All All All
Hardware Cisco Cloud Services Router 1000v - All All All
Hardware Cisco Cloud Services Router 1000v - All All All
Operating System Cisco Ios Xe - All All All
Operating System Cisco Ios Xe - All All All
Hardware Cisco Isr 1100 - All All All
Hardware Cisco Isr 1100 Router - All All All
Hardware Cisco Isr 1100 Router - All All All
Hardware Cisco Isr 1101 - All All All
Hardware Cisco Isr 1101 Router - All All All
Hardware Cisco Isr 1101 Router - All All All
Hardware Cisco Isr 1109 - All All All
Hardware Cisco Isr 1109 Router - All All All
Hardware Cisco Isr 1109 Router - All All All
Hardware Cisco Isr 1111x - All All All
Hardware Cisco Isr 1111x Router - All All All
Hardware Cisco Isr 1111x Router - All All All
Hardware Cisco Isr 111x - All All All
Hardware Cisco Isr 111x Router - All All All
Hardware Cisco Isr 111x Router - All All All
Hardware Cisco Isr 1120 - All All All
Hardware Cisco Isr 1120 Router - All All All
Hardware Cisco Isr 1120 Router - All All All
Hardware Cisco Isr 1160 - All All All
Hardware Cisco Isr 1160 Router - All All All
Hardware Cisco Isr 1160 Router - All All All

References

ReferenceSourceLinkTags
Cisco IOS XE Software Arbitrary Code Execution Vulnerability CISCO tools.cisco.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report