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CVE-2018-15430: Cisco Expressway Series and Cisco TelePresence Video Communication Server Remote Code Execution Vulnerability

• Severity: high (CVSS 7.2 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-10-05 · updated 2026-06-17
• Weakness: CWE-20

Description

A vulnerability in the administrative web interface of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker to execute code with user-level privileges on the underlying operating system. The vulnerability is due to insufficient validation of the content of upgrade packages. An attacker could exploit this vulnerability by uploading a malicious archive to the Upgrade page of the administrative web interface. A successful exploit could allow the attacker to execute code with user-level privileges on the underlying operating system.

Affected products

• Cisco TelePresence Video Communication Server (VCS) Expressway: x7.2.4, x8.9.2, x8.10.4

References

• http://www.securitytracker.com/id/1041784
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-express-vcs-rce
• http://www.securitytracker.com/id/1041784
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-express-vcs-rce

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