CVE-2024-20378

HIGH
7.5
CVSS Score
Published: May 1, 2024 at 04:41 PM UTC
Updated: June 17, 2026 at 07:06 AM UTC
32 products affected across 1 vendorIP Phone 7861IP Phone 7841IP Phone 7811

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Severity
HIGH7.5
Exploit prediction
EPSS 0.8%
SSVC
No known exploit

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.

Affected

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

v ≤ 12.0.4v < 12.0.412.0.4
v ≤ 12.0.4v < 12.0.412.0.4
v ≤ 12.0.4v < 12.0.412.0.4
v ≤ 12.0.4v < 12.0.412.0.4
v ≤ 12.0.4v < 12.0.412.0.4
v ≤ 12.0.4v < 12.0.412.0.4
v ≤ 12.0.4v < 12.0.412.0.4
v ≤ 12.0.4v < 12.0.412.0.4
v ≤ 12.0.4v < 12.0.412.0.4
v < 12.0.412.0.4
cisco-ip-phone-8811 (same device)

Remediation

No guide yet

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

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

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

CVSS

7.5HIGHcisco
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-305

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