TP-Link VIGI Cx20 prior 3.1.0_Build_250820_Rel.57668n Local Web Interface improper authentication

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.4	$0-$5k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in TP-Link VIGI InSight Sx45, VIGI Cx45, VIGI InSight Sx55, VIGI Cx55, VIGI InSight Sx85, VIGI Cx85, VIGI InSight S655I, VIGI InSight Sx45ZI, VIGI InSight Sx85PI, VIGI C340S, VIGI C540S , EasyCam C540S, VIGI C540V, VIGI C250, VIGI Cx50, VIGI Cx20I 1.0, VIGI Cx20I 1.20, VIGI Cx30I 1.0, VIGI Cx30I 1.20, VIGI Cx40I 1.0, VIGI Cx40I 1.20, VIGI Cx30 1.0, VIGI Cx30 1.20, VIGI C230I Mini, VIGI C240 1.0, VIGI C340 2.0, VIGI C440 2.0, VIGI C540 2.0, VIGI C540-4G, VIGI C340-W 2.x, VIGI C440-W 2.0, VIGI C540-W 2.0, VIGI InSight S345-4G, VIGI InSight Sx25 and VIGI Cx20. This issue affects some unknown processing of the component Local Web Interface. The manipulation leads to improper authentication. This vulnerability is traded as CVE-2026-0629. Access to the local network is required for this attack to succeed. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in TP-Link VIGI InSight Sx45, VIGI Cx45, VIGI InSight Sx55, VIGI Cx55, VIGI InSight Sx85, VIGI Cx85, VIGI InSight S655I, VIGI InSight Sx45ZI, VIGI InSight Sx85PI, VIGI C340S, VIGI C540S , EasyCam C540S, VIGI C540V, VIGI C250, VIGI Cx50, VIGI Cx20I 1.0, VIGI Cx20I 1.20, VIGI Cx30I 1.0, VIGI Cx30I 1.20, VIGI Cx40I 1.0, VIGI Cx40I 1.20, VIGI Cx30 1.0, VIGI Cx30 1.20, VIGI C230I Mini, VIGI C240 1.0, VIGI C340 2.0, VIGI C440 2.0, VIGI C540 2.0, VIGI C540-4G, VIGI C340-W 2.x, VIGI C440-W 2.0, VIGI C540-W 2.0, VIGI InSight S345-4G, VIGI InSight Sx25 and VIGI Cx20 and classified as critical. This issue affects some unknown functionality of the component Local Web Interface. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Authentication bypass in the password recovery feature of the local web interface across multiple VIGI camera models allows an attacker on the LAN to reset the admin password without verification by manipulating client-side state. Attackers can gain full administrative access to the device, compromising configuration and network security.

The advisory is shared at vigi.com. The identification of this vulnerability is CVE-2026-0629 since 01/06/2026. The exploitation is known to be easy. The attack can only be initiated within the local network. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

Upgrading to version 3.1.0_Build_250820_Rel.57668n eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-2932). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• TP-Link

Name

• EasyCam C540S
• VIGI C230I Mini
• VIGI C240 1.0
• VIGI C250
• VIGI C340 2.0
• VIGI C340-W 2.x
• VIGI C340S
• VIGI C440 2.0
• VIGI C440-W 2.0
• VIGI C540 2.0
• VIGI C540-4G
• VIGI C540-W 2.0
• VIGI C540S
• VIGI C540V
• VIGI Cx20
• VIGI Cx20I 1.0
• VIGI Cx20I 1.20
• VIGI Cx30 1.0
• VIGI Cx30 1.20
• VIGI Cx30I 1.0
• VIGI Cx30I 1.20
• VIGI Cx40I 1.0
• VIGI Cx40I 1.20
• VIGI Cx45
• VIGI Cx50
• VIGI Cx55
• VIGI Cx85
• VIGI InSight S345-4G
• VIGI InSight S655I
• VIGI InSight Sx25
• VIGI InSight Sx45
• VIGI InSight Sx45ZI
• VIGI InSight Sx55
• VIGI InSight Sx85
• VIGI InSight Sx85PI

License

• commercial

Website

• Vendor: https://www.tp-link.com/

CPE 2.3info

• 🔒
• 🔒
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CPE 2.2info

• 🔒
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CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: VIGI InSight Sx45/VIGI Cx45/VIGI InSight Sx55/VIGI Cx55/VIGI InSight Sx85/VIGI Cx85/VIGI InSight S655I/VIGI InSight Sx45ZI/VIGI InSight Sx85PI/VIGI C340S/VIGI C540S / EasyCam C540S/VIGI C540V/VIGI C250/VIGI Cx50/VIGI Cx20I 1.0/VIGI Cx20I 1.20/VIGI Cx30I 1.0/VIGI Cx30I 1.20/VIGI Cx40I 1.0/VIGI Cx40I 1.20/VIGI Cx30 1.0/VIGI Cx30 1.20/VIGI C230I Mini/VIGI C240 1.0/VIGI C340 2.0/VIGI C440 2.0/VIGI C540 2.0/VIGI C540-4G/VIGI C340-W 2.x/VIGI C440-W 2.0/VIGI C540-W 2.0/VIGI InSight S345-4G/VIGI InSight Sx25/VIGI Cx20 3.1.0_Build_250820_Rel.57668n

Timelineinfo

01/06/2026 CVE reserved
01/16/2026 +10 days Advisory disclosed
01/16/2026 +0 days VulDB entry created
01/22/2026 +6 days VulDB entry last update

Sourcesinfo

Vendor: tp-link.com

Advisory: vigi.com
Status: Confirmed

CVE: CVE-2026-0629 (🔒)
GCVE (CVE): GCVE-0-2026-0629
GCVE (VulDB): GCVE-100-341609
EUVD: 🔒

Entryinfo

Created: 01/16/2026 19:59
Updated: 01/22/2026 13:24
Changes: 01/16/2026 19:59 (66), 01/22/2026 13:24 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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