CVE-2024-20492

A vulnerability in the restricted shell of Cisco Expressway Series could allow an authenticated, local attacker to perform command injection attacks on the underlying operating system and elevate privileges to root. To exploit this vulnerability, the attacker must have Administrator-level credentials with read-write privileges on an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by submitting a series of crafted CLI commands. A successful exploit could allow the attacker to escape the restricted shell and gain root privileges on the underlying operating system of the affected device. Note: Cisco Expressway Series refers to Cisco Expressway Control (Expressway-C) devices and Cisco Expressway Edge (Expressway-E) devices.

• CWE-77
• CWE-77

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expw-escalation-3bkz77bDVendor Advisory

Published

Oct 2, 2024

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2024-20487A vulnerability in the web-based management interface of Cis…5.4
• CVE-2024-20488A vulnerability in the web-based management interface of Cis…6.1
• CVE-2024-20489A vulnerability in the storage method of the PON Controller …5.5
• CVE-2024-2049Server-Side Request Forgery (SSRF) in Citrix SD-WAN Standard…5.3
• CVE-2024-20490A vulnerability in a logging function of Cisco Nexus Dashboa…8.6
• CVE-2024-20491A vulnerability in a logging function of Cisco Nexus Dashboa…8.6
• CVE-2024-20493A vulnerability in the login authentication functionality of…5.3
• CVE-2024-20494A vulnerability in the TLS cryptography functionality of Cis…8.6
• CVE-2024-20495A vulnerability in the Remote Access VPN feature of Cisco Ad…8.6
• CVE-2024-20496A vulnerability in the UDP packet validation code of Cisco S…6.1
• CVE-2024-20497A vulnerability in Cisco Expressway Edge (Expressway-E) coul…4.3
• CVE-2024-20498Multiple vulnerabilities in the Cisco AnyConnect VPN server …7.5