This security advisory describes one low risk vulnerability.
Exploit availability: NoDescription
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input during authentication. A remote authenticated attacker can enter unexpected characters during a valid authentication and crash the web server on the device.Mitigation
Install updates from vendor's website.Vulnerable software versions
Cisco IOS XE: 16.9.2, 16.9.3, 16.9.5, 16.12.1, 17.1.0CPE
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.