CVE-2025-15542 | BDVDB-2026-312926 Detail

TP-LinkVX800v v1.0

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.

Impact#

CAPEC-131 Resource Leak Exposure

Weaknesses#

CWE-754 Improper Check for Unusual or Exceptional Conditions

References#

Exploit#

No public exploit known

History#

Version 12026-01-29Record published in the CVE List.

Published

Published: 2026-01-29
Last modified: 2026-01-29

Vendor information

Vendor: TP-Link
Product: VX800v v1.0

All TP-Link vulnerabilities

Score

6.3 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 22.1.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 800.0.12 (0.12.0 3.0.0 v603c.0 Build 250912)
Fixed
800.0.12 (0.12.0 3.0.0 v603c.0 Build 250912)

Scoring System

CVSS v4.0

6.3 Medium

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Attack Requirements	Present
Privileges Required	None
User Interaction	None
Vulnerable System Confidentiality	None
Vulnerable System Integrity	None
Vulnerable System Availability	Low
Subsequent System Confidentiality	None
Subsequent System Integrity	None
Subsequent System Availability	None

CVSS v3.1

Not available

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).