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CVE-2024-20463

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

Medium5.4EPSS 0.38%
Published
Updated
Reserved
Assigned by
cisco

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. 

Timeline

  1. ID reserved

    By cisco

  2. · 11 months later

    Published

  3. · 15 days later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2024-20463, by who scored it
Scored byCVSSScoreVector
ciscoCNA (assigner)3.1Medium5.4CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
NVDNVD · Modified3.1High7.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
EPSS (exploitation in 30 days)
0.38% · top 68% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.4.

Weakness

Affected products

  • Cisco · Cisco Analog Telephone Adaptor (ATA) Software

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

What to do

Exploitation: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .