This security advisory describes one high risk vulnerability.
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error n the RESTCONF and NETCONF-YANG access control list (ACL) function of Cisco IOS XE Software c. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
Install updates from vendor’s website.
Vulnerable software versions
-, 16.12.1, 16.12.2
Cisco IOS XR:
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.