CVE & CISA-KEV Catalog

CVE-2024-20420

MEDIUM
5.4
CVSS v3
NVD

Description

A vulnerability in the web-based management interface of Cisco ATA 190 Series Analog Telephone Adapter firmware could allow an authenticated, remote attacker with low privileges to run commands as an Admin user. This vulnerability is due to incorrect authorization verification by the HTTP server. An attacker could exploit this vulnerability by sending a malicious request to the web-based management interface. A successful exploit could allow the attacker to run commands as the Admin user.

How to fix

Remediation Available
ata 191 firmwareNVD
Affected:< 11.2.5Fixed in:11.2.5CVE-2024-20420derived from NVD
ata 192 firmwareNVD
Affected:< 11.2.5Fixed in:11.2.5CVE-2024-20420derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityLow
IntegrityLow
AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Exploit Intelligence

0.36%probability of exploitation in 30 days
28thpercentile

Low risk: more likely to be exploited than 28% of all known CVEs.

References

Vendor Advisory1

Related Vulnerabilities

Other CWE-250 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2024-1222High8.664%-Fix
CVE-2025-12420Critical9.845%-Fix
CVE-2024-38813High7.517%KEVFix
CVE-2025-34515Critical9.87.3%--
CVE-2026-29205High8.67.2%--
CVE-2019-16765High7.44.7%-Fix
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Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-10-31.