CVE & CISA-KEV Catalog

CVE-2024-20378

HIGH
7.5
CVSS v3
NVD

Description

A vulnerability in the web-based management interface of Cisco IP Phone firmware could allow an unauthenticated, remote attacker to retrieve sensitive information from an affected device. This vulnerability is due to a lack of authentication for specific endpoints of the web-based management interface on an affected device. An attacker could exploit this vulnerability by connecting to the affected device. A successful exploit could allow the attacker to gain unauthorized access to the device, enabling the recording of user credentials and traffic to and from the affected device, including VoIP calls that could be replayed.

How to fix

Remediation Available
ip phone 6821 with multiplatform firmwareNVD
Affected:< 12.0.4Fixed in:12.0.4CVE-2024-20378derived from NVD
ip phone 6841 with multiplatform firmwareNVD
Affected:< 12.0.4Fixed in:12.0.4CVE-2024-20378derived from NVD
ip phone 6851 with multiplatform firmwareNVD
Affected:< 12.0.4Fixed in:12.0.4CVE-2024-20378derived from NVD
ip phone 6861 with multiplatform firmwareNVD
Affected:< 12.0.4Fixed in:12.0.4CVE-2024-20378derived from NVD
ip phone 6871 with multiplatform firmwareNVD
Affected:< 12.0.4Fixed in:12.0.4CVE-2024-20378derived from NVD
ip phone 7811 with multiplatform firmwareNVD
Affected:< 12.0.4Fixed in:12.0.4CVE-2024-20378derived from NVD
ip phone 7821 with multiplatform firmwareNVD
Affected:< 12.0.4Fixed in:12.0.4CVE-2024-20378derived from NVD
ip phone 7841 with multiplatform firmwareNVD
Affected:< 12.0.4Fixed in:12.0.4CVE-2024-20378derived from NVD
ip phone 7861 with multiplatform firmwareNVD
Affected:< 12.0.4Fixed in:12.0.4CVE-2024-20378derived from NVD
ip phone 8811 with multiplatform firmwareNVD
Affected:< 12.0.4Fixed in:12.0.4CVE-2024-20378derived from NVD
ip phone 8841 with multiplatform firmwareNVD
Affected:< 12.0.4Fixed in:12.0.4CVE-2024-20378derived from NVD
ip phone 8851 with multiplatform firmwareNVD
Affected:< 12.0.4Fixed in:12.0.4CVE-2024-20378derived from NVD
ip phone 8851nr with multiplatform firmwareNVD
Affected:< 12.0.4Fixed in:12.0.4CVE-2024-20378derived from NVD
ip phone 8861 with multiplatform firmwareNVD
Affected:< 12.0.4Fixed in:12.0.4CVE-2024-20378derived from NVD
video phone 8875 with multiplatform firmwareNVD
Affected:< 2.3.1.0101Fixed in:2.3.1.0101CVE-2024-20378derived 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 RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

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

Exploit Intelligence

0.80%probability of exploitation in 30 days
52ndpercentile

Moderate risk: more likely to be exploited than 52% of all known CVEs.

References

Vendor Advisory1
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CVE-2024-20378 severity badge

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 2026-01-05.