Vulnerability in Cisco Ata 190
CVE-2022-20686
Multiple vulnerabilities in the Link Layer Discovery Protocol (LLDP) functionality of Cisco ATA 190 Series Analog Telephone Adapter firmware could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device and cause the LLDP service to restart. These vulnerabilities are due to missing length validation of certain LLDP packet header fields. An attacker could exploit these vulnerabilities by sending a malicious LLDP packet to an affected device. A successful exploit could allow the attacker to execute code on the affected device and cause LLDP to restart unexpectedly, resulting in a denial of service (DoS) condition.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.010 (60.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.010 · change: +0.000
Affected products
- Cisco Ata 190
- Cisco Ata 190 Firmware
- Cisco Ata 191
- Cisco Ata 191 Firmware — versions 12.0.1
- Cisco Ata 192
- Cisco Ata 192 Firmware
- Cisco Analog Telephone Adaptor (Ata) Software — versions 1.2.1, 1.2.2 SR1, 1.2.2
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2022-20686?
- CVE-2022-20686 is a medium-severity vulnerability in Cisco Ata 190, classified under Improper Handling of Length Parameter Inconsistency. CVSS score: 5.3/10. Published 2022-12-12.
- How severe is CVE-2022-20686?
- Medium severity. CVSS v3 base score is 5.3 out of 10.