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TI-2022-05250 Aliases CVE-2022-20691GHSA-3f75-4wmv-vpf2

Uncontrolled resource consumption in Cisco Analog Telephone Adaptor Software

Priority LOW 30CWE-400Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-400.

Summary

A vulnerability in the Cisco Discovery Protocol functionality of Cisco ATA 190 Series Adaptive Telephone Adapter firmware could allow an unauthenticated, adjacent attacker to cause a DoS condition of an affected device. This vulnerability is due to missing length validation of certain Cisco Discovery Protocol packet header fields. An attacker could exploit this vulnerability by sending crafted Cisco Discovery Protocol packets to an affected device. A successful exploit could allow the attacker to cause the device to exhaust available memory and cause the service to restart. Cisco has released firmware updates that address this vulnerability.

Why it matters now

EPSS 0.00668 52nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Analog Telephone Adaptor (ATA) Software1.2.1; 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(4); 1.1.2; 2.1(6); 2.1(5); 2.16(2); 2.16(1); 3.2(0); 3.2(4); 3.2(3); 3.2(1); 2.15; 2.14; 1.34; 1.0(0); 3.1(1); 3.1(0); 3.1(2); 3.0(0); 9.2(3); 9.2(1); 9.0(3); 12.0.1 SR2; 12.0.1; 12.0.1 SR1; 12.0.1 SR3; 12.0.1 SR4; 11.2.1—No fix listedCNA
  • 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(4); 1.1.2; 2.1(6); 2.1(5); 2.16(2); 2.16(1); 3.2(0); 3.2(4); 3.2(3); 3.2(1); 2.15; 2.14; 1.34; 1.0(0); 3.1(1); 3.1(0); 3.1(2); 3.0(0); 9.2(3); 9.2(1); 9.0(3); 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

CPEVersionsRoleVendor
cpe:2.3:o:cisco:ata_190_firmware:-:*:*:*:on-premises:*:*:*not specified by NVDVulnerableCisco
cpe:2.3:h:cisco:ata_190:-:*:*:*:on-premises:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:ata_191_firmware:*:*:*:*:multiplatform:*:*:*before 11.2.2VulnerableCisco
cpe:2.3:h:cisco:ata_191:-:*:*:*:multiplatform:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:ata_191_firmware:*:*:*:*:on-premises:*:*:*before 12.0.1VulnerableCisco
cpe:2.3:o:cisco:ata_191_firmware:12.0.1:-:*:*:on-premises:*:*:*12.0.1VulnerableCisco
cpe:2.3:o:cisco:ata_191_firmware:12.0.1:sr1:*:*:on-premises:*:*:*12.0.1 sr1VulnerableCisco
cpe:2.3:o:cisco:ata_191_firmware:12.0.1:sr2:*:*:on-premises:*:*:*12.0.1 sr2VulnerableCisco
cpe:2.3:o:cisco:ata_191_firmware:12.0.1:sr3:*:*:on-premises:*:*:*12.0.1 sr3VulnerableCisco
cpe:2.3:o:cisco:ata_191_firmware:12.0.1:sr4:*:*:on-premises:*:*:*12.0.1 sr4VulnerableCisco
  • 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
Show 3 more CPE
CPEVersionsRoleVendor
cpe:2.3:h:cisco:ata_191:-:*:*:*:on-premises:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:ata_192_firmware:*:*:*:*:multiplatform:*:*:*before 11.2.2VulnerableCisco
cpe:2.3:h:cisco:ata_192:-:*:*:*:multiplatform:*:*:*not specified by NVDRunning onCisco
  • cpe:2.3:h:cisco:ata_191:-:*:*:*:on-premises:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:ata_192_firmware:*:*:*:*:multiplatform:*:*:* Versions before 11.2.2 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:ata_192:-:*:*:*:multiplatform:*:*:* Versions not specified by NVD Running on ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-20691
  2. 2026-10-03 Alias added: GHSA-3f75-4wmv-vpf2
  3. 2026-10-07 EPSS moved to the 50th–90th percentile

References

Other 1

  • 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-2022-05247 Out-of-bounds read in Cisco Analog Telephone Adaptor Software CVSS 3.1MEDIUM 5.3
  • TI-2022-05246 Buffer overflow in Cisco Analog Telephone Adaptor Software CVSS 3.1MEDIUM 5.3
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences