Uncaught Exception in Cisco IOS and Cisco IOS XE - CVE-2022-20919
Published: September 29, 2022
Vulnerability identifier: #VU67737
CSH Severity: High
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-20919
CWE-ID: CWE-248
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient input validation during processing of Common Industrial Protocol (CIP) packets. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Affected software
Cisco IOS
Cisco IOS XE
Cisco IOS XE
How to mitigate CVE-2022-20919
Install updates from vendor's website.
Cisco IOS - addressed in versions 15.2(8)E2, 16.12.8, 17.3(5.83), 17.3.6, 17.6.1z, 17.6(3.17), 17.6.4, 17.9(0.6), 17.9.1, 17.9.1a
Cisco IOS XE - addressed in versions Amsterdam-17.3.6, Bengaluru-17.6.4, Gibraltar-16.12.8, Cupertino-17.9.1, Cupertino-17.9.1a, 15.2(08)E02, 16.12.8, 17.3(5.83), 17.3.6, 17.6.1z, 17.6(3.17), 17.6.4, 17.9(0.6), 17.9.1a
Cisco IOS XE - addressed in versions Amsterdam-17.3.6, Bengaluru-17.6.4, Gibraltar-16.12.8, Cupertino-17.9.1, Cupertino-17.9.1a, 15.2(08)E02, 16.12.8, 17.3(5.83), 17.3.6, 17.6.1z, 17.6(3.17), 17.6.4, 17.9(0.6), 17.9.1a