CVE-2025-15542 - Vulnerability Details - OpenCVE

Improper handling of exceptional conditions in VX800v v1.0 in SIP processing allows an attacker to flood the device with crafted INVITE messages, blocking all voice lines and causing a denial of service on incoming calls.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://www.tp-link.com/de/support/download/vx800v/#Firmware
https://www.tp-link.com/us/support/faq/4930/

History

Thu, 29 Jan 2026 19:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Thu, 29 Jan 2026 18:30:00 +0000

Type	Values Removed	Values Added
Description		Improper handling of exceptional conditions in VX800v v1.0 in SIP processing allows an attacker to flood the device with crafted INVITE messages, blocking all voice lines and causing a denial of service on incoming calls.
Title		Denial of Service (DoS) of VoIP Communication on TP-Link VX800v
Weaknesses		CWE-754
References		https://www.tp-link.com/de/support/download/vx800v/#Firmware https://www.tp-link.com/us/support/faq/4930/
Metrics		cvssV4_0 `{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: TPLink

Published: 2026-01-29T18:06:21.474Z

Updated: 2026-01-29T18:47:56.331Z

Reserved: 2026-01-20T21:50:44.270Z

Link: CVE-2025-15542

Vulnrichment

Updated: 2026-01-29T18:47:52.059Z

NVD

Status : Received

Published: 2026-01-29T19:16:11.320

Modified: 2026-01-29T19:16:11.320

Link: CVE-2025-15542

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-754

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