Resource exhaustion in Cisco Systems, Inc products - CVE-2022-20686
Published: October 6, 2022
Vulnerability identifier: #VU67960
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-20686
CWE-ID: CWE-400
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 application does not properly control consumption of internal resources in the Link Layer Discovery Protocol (LLDP) functionality. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
Affected software
ATA 190 Analog Telephone Adapter
ATA 191 Analog Telephone Adapter
ATA 192 Multiplatform Analog Telephone Adapter
ATA 191 Multiplatform Analog Telephone Adapter
ATA 191 Analog Telephone Adapter
ATA 192 Multiplatform Analog Telephone Adapter
ATA 191 Multiplatform Analog Telephone Adapter
How to mitigate CVE-2022-20686
Install updates from vendor's website.
ATA 191 Analog Telephone Adapter - update to 12.0(1)SR5
ATA 192 Multiplatform Analog Telephone Adapter - update to 11.2.2
ATA 191 Multiplatform Analog Telephone Adapter - update to 11.2.2
ATA 192 Multiplatform Analog Telephone Adapter - update to 11.2.2
ATA 191 Multiplatform Analog Telephone Adapter - update to 11.2.2