CVE-2022-20687 describes multiple vulnerabilities in the Link Layer Discovery Protocol (LLDP) functionality of Cisco ATA 190 Series Analog Telephone Adapters. These flaws, stemming from missing length validation in LLDP packet header fields, could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service by restarting the LLDP service. With a CVSS score of 5.3 (Medium), the vulnerability has a network attack vector and low attack complexity, potentially leading to a loss of availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:cisco:ata_190_firmware:-:*:*:*:on-premises:*:*:* | ||
< 11.2.2CPE matchmatch criteria | cpe:2.3:o:cisco:ata_191_firmware:*:*:*:*:multiplatform:*:*:* | ||
< 12.0.1CPE matchmatch criteria | cpe:2.3:o:cisco:ata_191_firmware:*:*:*:*:on-premises:*:*:* | ||
12.0.1CPE matchmatch criteria | cpe:2.3:o:cisco:ata_191_firmware:12.0.1:-:*:*:on-premises:*:*:* | ||
12.0.1CPE matchmatch criteria | cpe:2.3:o:cisco:ata_191_firmware:12.0.1:sr1:*:*:on-premises:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
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Remediation records are not available for this CVE.