VDB-385536 · Submit #851580 · CVE-2026-18616

GL-iNet GL-MT3000 up to 4.4.5 wg-server.so Native Plugin /cgi-bin/glc server.set_peer public_key command injection

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.
8.9	$0-$5k	1.27

Summaryinfo

A vulnerability was found in GL-iNet GL-MT3000 up to 4.4.5 and classified as critical. This affects the function server.set_peer of the file /cgi-bin/glc of the component wg-server.so Native Plugin. The manipulation of the argument public_key results in command injection. This vulnerability is identified as CVE-2026-18616. The attack can be executed remotely. Additionally, an exploit exists. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.

Detailsinfo

A vulnerability, which was classified as very critical, was found in GL-iNet GL-MT3000 up to 4.4.5. Affected is the function server.set_peer of the file /cgi-bin/glc of the component wg-server.so Native Plugin. The manipulation of the argument public_key with an unknown input leads to a command injection vulnerability. CWE is classifying the issue as CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-18616. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/03/2026). The MITRE ATT&CK project declares the attack technique as T1202.

The exploit is shared for download at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

GL-iNet

Name

GL-MT3000

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 8.9

VulDB Base Score: 9.8
VulDB Temp Score: 8.9
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: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
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: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/03/2026 Advisory disclosed
08/03/2026 +0 days VulDB entry created
08/03/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2026-18616 (🔒)
GCVE (CVE): GCVE-0-2026-18616
GCVE (VulDB): GCVE-100-385536
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/03/2026 09:38
Changes: 08/03/2026 09:38 (60)
Complete: 🔍
Submitter: Strforexc2
Cache ID: 216::103

Submitinfo

Accepted

Submit #851580: GL-iNet MT3000 4.4.5 Command Injection (by Strforexc2)