VDB-352666 · CVE-2026-4736 · GCVE-0-2026-4736

No-Chicken Echo-Mate prior 250329 netfilter values

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.
6.7	$0-$5k	0.00

Summaryinfo

A vulnerability was found in No-Chicken Echo-Mate. It has been declared as critical. The affected element is an unknown function of the file SDK/rv1106-sdk/sysdrv/source/kernel/include/net/netfilter. Executing a manipulation can lead to improper handling of values. This vulnerability is handled as CVE-2026-4736. It is possible to launch the attack on the local host. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in No-Chicken Echo-Mate. This vulnerability affects some unknown processing of the file SDK/rv1106-sdk/sysdrv/source/kernel/include/net/netfilter. The manipulation with an unknown input leads to a improper handling of values vulnerability. The CWE definition for the vulnerability is CWE-229. The product does not properly handle when the expected number of values for parameters, fields, or arguments is not provided in input, or if those values are undefined. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Improper Handling of Values vulnerability in No-Chicken Echo-Mate (SDK/rv1106-sdk/sysdrv/source/kernel/include/net/netfilter modules). This vulnerability is associated with program files nf_tables.H‎, nft_byteorder.C‎, nft_meta.C‎. This issue affects Echo-Mate: before V250329.

The advisory is available at github.com. This vulnerability was named CVE-2026-4736 since 03/24/2026. The exploitation appears to be difficult. Local access is required to approach this attack. Technical details are known, but there is no available exploit.

Upgrading to version 250329 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

No-Chicken

Name

Echo-Mate

Website

Product: https://github.com/No-Chicken/Echo-Mate/

CPE 2.3info

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CPE 2.2info

🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

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

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.0
VulDB Temp Score: 6.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper handling of values
CWE: CWE-229 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

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: Echo-Mate 250329
Patch: github.com

Timelineinfo

03/24/2026 Advisory disclosed
03/24/2026 +0 days CVE reserved
03/24/2026 +0 days VulDB entry created
03/28/2026 +4 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-4736 (🔒)
GCVE (CVE): GCVE-0-2026-4736
GCVE (VulDB): GCVE-100-352666

Entryinfo

Created: 03/24/2026 07:17
Updated: 03/28/2026 10:44
Changes: 03/24/2026 07:17 (72), 03/28/2026 10:44 (2)
Complete: 🔍
Cache ID: 216::103