system
Describe <CVE-2019-5274>.
user
What is <CVE-2019-5274>?
assistant
USG9500 with versions of V500R001C30;V500R001C60 have a denial of service vulnerability. Due to a flaw in the X.509 implementation in the affected products which can result in an infinite loop, an attacker may exploit the vulnerability via a malicious certificate to perform a denial of service attack on the affected products..