CVE-2020-3179
high-risk
Published 2020-05-06
A vulnerability in the generic routing encapsulation (GRE) tunnel decapsulation feature of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a memory handling error when GRE over IPv6 traffic is processed. An attacker could exploit this vulnerability by sending crafted GRE over IPv6 packets with either IPv4 or IPv6 payload through an affected device. A successful exploit could allow the attacker to cause the device to crash, resulting in a DoS condition.
Do I need to act?
~
1.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10
High
NETWORK
/ LOW complexity
Affected Products (20)
Asa 5510 Firmware
Asa 5510 Firmware
Asa 5520 Firmware
Asa 5520 Firmware
Asa 5540 Firmware
Asa 5540 Firmware
Asa 5550 Firmware
Asa 5550 Firmware
Affected Vendors
References (2)
50
/ 100
high-risk
Severity
26/34 · High
Exploitability
3/34 · Minimal
Exposure
21/34 · High