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CVE-2024-20463

Cisco ATA 190 Series Analog Telephone Adapter Firmware Command Injection and Denial of Service Vulnerability

HIGH

7.1

CVSS Score

Published: October 16, 2024 at 04:16 PM UTC

Updated: June 17, 2026 at 07:07 AM UTC

5 products affected across 1 vendorAta 191 FirmwareAta 192 FirmwareAta 191

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Severity

HIGH7.1

Exploit prediction

EPSS 0.4%

SSVC

No known exploit

Description

A vulnerability in the web-based management interface of Cisco ATA 190 Series Analog Telephone Adapter firmware could allow an unauthenticated, remote attacker to modify the configuration or reboot an affected device. This vulnerability is due to the HTTP server allowing state changes in GET requests. An attacker could exploit this vulnerability by sending a malicious request to the web-based management interface on an affected device. A successful exploit could allow the attacker to make limited modifications to the configuration or reboot the device, resulting in a denial of service (DoS) condition. 

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ata 191 Firmware · Cisco

95%

v < 11.2.5v < 12.0.2

Affected range stops below 11.2.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.0.2, so it looks safe — our inference, not a vendor statement

cisco-ata-191 (same device)

Ata 192 Firmware · Cisco

95%

v < 11.2.5

Affected range stops below 11.2.5, so it looks safe — our inference, not a vendor statement

cisco-ata-192 (same device)

Analog Telephone Adaptor · Cisco

60%

11.1.0 11.1.0 MSR1 11.1.0 MSR2 11.1.0 MSR3 11.1.0 MSR4 11.2.1 11.2.2 11.2.2 MSR1 11.2.3 11.2.4 12.0.1 12.0.1 SR1 12.0.1 SR2 12.0.1 SR3 12.0.1 SR4 12.0.1 SR5

Ata 191 · Ciscodevice

80%

All versions

Ata 192 · Ciscodevice

80%

All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ata19x-multi-RDTEqRsy

References (1)

Vendor Advisory

Source: [email protected]

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ata19x-multi-RDTEqRsy

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGH[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: NONE
Integrity: LOW
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-305NVD-CWE-OtherCWE-862

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