6.8
MEDIUM
CVSS 3.1
CVE-2026-0711
Zyxel DX3300-T0 Post-Authentication Command Injection Vulnerability
Overview
Description
A post-authentication command injection vulnerability in the EasyMesh-related APIs of Zyxel DX3300-T0 firmware versions through 5.50(ABVY.7.1)C0 could allow an authenticated, adjacent attacker with administrator privileges to execute OS commands on an affected device.
Details
INFO
Published Date :
April 28, 2026, 3:16 a.m.
Last Modified :
July 25, 2026, 11:10 a.m.
Remotely Exploit :
No
Source :
[email protected]
Impact
Affected Products
The following products are affected by CVE-2026-0711
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework
for assessing the severity of vulnerabilities in software and systems.
We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | 96e50032-ad0d-4058-a115-4d2c13821f9f | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
Update Zyxel firmware to patch post-authentication command injection.
- Update device firmware to version 5.50(ABVY.7.1)C0 or later.
- Apply vendor patches as soon as they are available.
- Restrict administrator access to the affected APIs.
References
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-0711.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-0711 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-0711
weaknesses.
CAPEC-6: Argument Injection Argument Injection
CAPEC-15: Command Delimiters Command Delimiters
CAPEC-43: Exploiting Multiple Input Interpretation Layers Exploiting Multiple Input Interpretation Layers
CAPEC-88: OS Command Injection OS Command Injection
CAPEC-108: Command Line Execution through SQL Injection Command Line Execution through SQL Injection
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-0711 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-0711 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Jul. 25, 2026
Action Type Old Value New Value Added Translation Title: DX3300-T0 de Zyxel, Description: Una vulnerabilidad de inyección de comandos de post-autenticación en las API relacionadas con EasyMesh de las versiones de firmware de Zyxel DX3300-T0 hasta la 5.50(ABVY.7.1)C0 podría permitir a un atacante autenticado y adyacente con privilegios de administrador ejecutar comandos del sistema operativo en un dispositivo afectado. -
Initial Analysis by [email protected]
Jul. 08, 2026
Action Type Old Value New Value Added CPE Configuration AND OR *cpe:2.3:o:zyxel:nr5307_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.00(acjt.3)c0 OR cpe:2.3:h:zyxel:nr5307:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:nebula_fwa515_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.60(acpz.0)v0 OR cpe:2.3:h:zyxel:nebula_fwa515:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:dx3300-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50(abvy.7.2)c0 OR cpe:2.3:h:zyxel:dx3300-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:dx3300-t1_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50(abvy.7.2)c0 OR cpe:2.3:h:zyxel:dx3300-t1:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:dx3301-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50(abvy.7.2)c0 OR cpe:2.3:h:zyxel:dx3301-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:dx5401-b0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.17(abyo.7.2)c0 OR cpe:2.3:h:zyxel:dx5401-b0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:dx5401-b1_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.17(abyo.7.2)c0 OR cpe:2.3:h:zyxel:dx5401-b1:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ee3301-00_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.63(acmu.3.1)c0 OR cpe:2.3:h:zyxel:ee3301-00:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ee5301-00_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.63(acld.3.1)c0 OR cpe:2.3:h:zyxel:ee5301-00:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ee6510-10_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.19(acjq.4.2)c0 OR cpe:2.3:h:zyxel:ee6510-10:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:emg3525-t50b_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50(abpm.9.8)c0 OR cpe:2.3:h:zyxel:emg3525-t50b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:emg5523-t50b_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50(abpm.9.8)c0 OR cpe:2.3:h:zyxel:emg5523-t50b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex3300-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50(abvy.7.2)c0 OR cpe:2.3:h:zyxel:ex3300-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex3300-t1_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50(abvy.7.2)c0 OR cpe:2.3:h:zyxel:ex3300-t1:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex3301-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50(abvy.7.2)c0 OR cpe:2.3:h:zyxel:ex3301-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex3500-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.44(achr.6)c0 OR cpe:2.3:h:zyxel:ex3500-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex3501-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.44(achr.6)c0 OR cpe:2.3:h:zyxel:ex3501-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex3600-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.70(acif.3)c0 OR cpe:2.3:h:zyxel:ex3600-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex5401-b0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.17(abyo.7.2)c0 OR cpe:2.3:h:zyxel:ex5401-b0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex5401-b1_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.17(abyo.7.2)c0 OR cpe:2.3:h:zyxel:ex5401-b1:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex5512-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.70(aceg.5.5)c0 OR cpe:2.3:h:zyxel:ex5512-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex5601-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.70(acdz.6)c0 OR cpe:2.3:h:zyxel:ex5601-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex5601-t1_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.70(acdz.6)c0 OR cpe:2.3:h:zyxel:ex5601-t1:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex7501-b0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.18(achn.3.2)c0 OR cpe:2.3:h:zyxel:ex7501-b0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg3625-t50b_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50(abpm.9.8)c0 OR cpe:2.3:h:zyxel:vmg3625-t50b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg8623-t50b_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50(abpm.9.8)c0 OR cpe:2.3:h:zyxel:vmg8623-t50b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ax7501-b0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.17(abpc.7.2)c0 OR cpe:2.3:h:zyxel:ax7501-b0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ax7501-b1_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.17(abpc.7.2)c0 OR cpe:2.3:h:zyxel:ax7501-b1:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:pe3301-00_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.63(acmt.3.1)c0 OR cpe:2.3:h:zyxel:pe3301-00:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:pe5301-01_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.63(acoj.3.1)c0 OR cpe:2.3:h:zyxel:pe5301-01:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:px5302-00_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.44(acnm.0.1)c0 OR cpe:2.3:h:zyxel:px5302-00:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:px5301-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.44(ackb.0.7)c0 OR cpe:2.3:h:zyxel:px5301-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:we3300-00_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.70(acka.2)c0 OR cpe:2.3:h:zyxel:we3300-00:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:wx3100-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50(abvl.4.10)c0 OR cpe:2.3:h:zyxel:wx3100-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:we4600-00_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 6.70(ackt.1)c0 OR cpe:2.3:h:zyxel:we4600-00:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:wx5600-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.70(aceb.6)c0 OR cpe:2.3:h:zyxel:wx5600-t0:-:*:*:*:*:*:*:* Added Reference Type Zyxel Corporation: https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-vulnerabilities-in-certain-4g-lte-5g-nr-cpe-dsl-ethernet-cpe-fiber-onts-and-wireless-extenders-04-28-2026 Types: Vendor Advisory -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Zyxel', 'product': 'DX3300-T0 firmware', 'versions': [{'status': 'affected', 'version': '<= 5.50(ABVY.7.1)C0'}], 'defaultStatus': 'unaffected'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-0711', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-04-28T00:00:00+00:00'} -
New CVE Received by [email protected]
Apr. 28, 2026
Action Type Old Value New Value Added Description A post-authentication command injection vulnerability in the EasyMesh-related APIs of Zyxel DX3300-T0 firmware versions through 5.50(ABVY.7.1)C0 could allow an authenticated, adjacent attacker with administrator privileges to execute OS commands on an affected device. Added CVSS V3.1 AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-78 Added Reference https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-vulnerabilities-in-certain-4g-lte-5g-nr-cpe-dsl-ethernet-cpe-fiber-onts-and-wireless-extenders-04-28-2026
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.