CVE-2020-3283
high-risk
Published 2020-05-06
A vulnerability in the Secure Sockets Layer (SSL)/Transport Layer Security (TLS) handler of Cisco Firepower Threat Defense (FTD) Software when running on the Cisco Firepower 1000 Series platform could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition on an affected device. The vulnerability is due to a communication error between internal functions. An attacker could exploit this vulnerability by sending a crafted SSL/TLS message to an affected device. A successful exploit could allow the attacker to cause a buffer underrun, which leads to a crash. The crash causes the affected device to reload.
Do I need to act?
~
1.3% 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
8
CVSS 8.6/10
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)
54
/ 100
high-risk
Severity
29/34 · Critical
Exploitability
4/34 · Minimal
Exposure
21/34 · High