CVE-2020-3254

HIGH

Cisco ASA & FTD MGCP Packet Handling Unauthenticated DoS

Title source: llm
STIX 2.1

Description

Multiple vulnerabilities in the Media Gateway Control Protocol (MGCP) inspection feature of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerabilities are due to inefficient memory management. An attacker could exploit these vulnerabilities by sending crafted MGCP packets through an affected device. An exploit could allow the attacker to cause memory exhaustion resulting in a restart of an affected device, causing a DoS condition for traffic traversing the device.

References (1)

Core 1
Core References

Scores

CVSS v3 7.5
EPSS 0.0116
EPSS Percentile 78.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-400
Status published
Products (14)
cisco/adaptive_security_appliance_software 9.6 - 9.6.4.34
cisco/asa_5505_firmware 9.10\(1.3\)
cisco/asa_5510_firmware 9.10\(1.3\)
cisco/asa_5512-x_firmware 9.10\(1.3\)
cisco/asa_5515-x_firmware 9.10\(1.3\)
cisco/asa_5520_firmware 9.10\(1.3\)
cisco/asa_5525-x_firmware 9.10\(1.3\)
cisco/asa_5540_firmware 9.10\(1.3\)
cisco/asa_5545-x_firmware 9.10\(1.3\)
cisco/asa_5550_firmware 9.10\(1.3\)
... and 4 more
Published May 06, 2020
Tracked Since Feb 18, 2026