Multiple vulnerabilities in the Link Layer Discovery Protocol (LLDP) functionality of…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Cisco | Cisco Analog Telephone Adaptor (ATA) Software | 1.2.1; 1.2.2 SR1; 1.2.2; 1.2.2 SR2; 11.1.0 MSR4; 11.1.0; 11.1.0 MSR1; 11.1.0 MSR2; 11.1.0 MSR3; 1.1.0; 1.1.1; 1.1.2; 12.0.1 SR2; 12.0.1; 12.0.1 SR1; 12.0.1 SR3; 12.0.1 SR4; 11.2.1 | — | No fix listed | CNA |
- Cisco Analog Telephone Adaptor (ATA) Software VendorCisco Affected 1.2.1; 1.2.2 SR1; 1.2.2; 1.2.2 SR2; 11.1.0 MSR4; 11.1.0; 11.1.0 MSR1; 11.1.0 MSR2; 11.1.0 MSR3; 1.1.0; 1.1.1; 1.1.2; 12.0.1 SR2; 12.0.1; 12.0.1 SR1; 12.0.1 SR3; 12.0.1 SR4; 11.2.1 Fixed in — No fix listed CNA
CPE configurations NVD · 13
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:ata_190_firmware:-:*:*:*:on-premises:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:ata_190:-:*:*:*:on-premises:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:ata_191_firmware:*:*:*:*:multiplatform:*:*:* | before 11.2.2 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:ata_191:-:*:*:*:multiplatform:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:ata_191_firmware:*:*:*:*:on-premises:*:*:* | before 12.0.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ata_191_firmware:12.0.1:-:*:*:on-premises:*:*:* | 12.0.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ata_191_firmware:12.0.1:sr1:*:*:on-premises:*:*:* | 12.0.1 sr1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ata_191_firmware:12.0.1:sr2:*:*:on-premises:*:*:* | 12.0.1 sr2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ata_191_firmware:12.0.1:sr3:*:*:on-premises:*:*:* | 12.0.1 sr3 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ata_191_firmware:12.0.1:sr4:*:*:on-premises:*:*:* | 12.0.1 sr4 | Vulnerable | Cisco |
- cpe:2.3:o:cisco:ata_190_firmware:-:*:*:*:on-premises:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:ata_190:-:*:*:*:on-premises:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:ata_191_firmware:*:*:*:*:multiplatform:*:*:* Versions before 11.2.2 Vulnerable ·Cisco
- cpe:2.3:h:cisco:ata_191:-:*:*:*:multiplatform:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:ata_191_firmware:*:*:*:*:on-premises:*:*:* Versions before 12.0.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ata_191_firmware:12.0.1:-:*:*:on-premises:*:*:* Versions 12.0.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ata_191_firmware:12.0.1:sr1:*:*:on-premises:*:*:* Versions 12.0.1 sr1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ata_191_firmware:12.0.1:sr2:*:*:on-premises:*:*:* Versions 12.0.1 sr2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ata_191_firmware:12.0.1:sr3:*:*:on-premises:*:*:* Versions 12.0.1 sr3 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ata_191_firmware:12.0.1:sr4:*:*:on-premises:*:*:* Versions 12.0.1 sr4 Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-20686
- 2026-10-03 Alias added: GHSA-gx9f-qvh7-6mrg
References
More Cisco Ata 190 Firmware vulnerabilities
- TI-2022-05248 Multiple vulnerabilities in the Cisco Discovery Protocol functionality of Cisco ATA 190… CVSS 3.1HIGH 8.8
- TI-2021-13710 Cisco ATA 190 Series Analog Telephone Adapter Software Vulnerabilities CVSS 3.1HIGH 8.8
- TI-2021-13734 Cisco ATA 190 Series Analog Telephone Adapter Software Vulnerabilities CVSS 3.1HIGH 8.8
- TI-2022-05249 Multiple vulnerabilities in the Cisco Discovery Protocol functionality of Cisco ATA 190… CVSS 3.1HIGH 8.8
- TI-2022-05250 Uncontrolled resource consumption in Cisco Analog Telephone Adaptor Software CVSS 3.1MEDIUM 6.5
- TI-2022-05247 Out-of-bounds read in Cisco Analog Telephone Adaptor Software CVSS 3.1MEDIUM 5.3
Sources
- CVE-2022-20686 · CVE Program
- CVE-2022-20686 · NVD
- FIRST EPSS
- GHSA-gx9f-qvh7-6mrg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences