CVE-2025-13943
Received
Received - Intake
Post-Auth Command Injection in Zyxel EX3301-T0 Firmware
Publication date: 2026-02-24
Last updated on: 2026-02-25
Assigner: Zyxel Corporation
Description
Description
A post-authentication command injection vulnerability in the log file download function of the Zyxel EX3301-T0 firmware versions through 5.50(ABVY.7)C0 could allow an authenticated attacker to execute operating system (OS) commands on an affected device.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| zyxel | ee5301-00_firmware | to 5.63(acld.2.1 (exc) |
| zyxel | ee3301-00_firmware | to 5.63(acmu.2.1 (exc) |
| zyxel | dx5401-b1_firmware | to 5.17(abyo.7.1 (exc) |
| zyxel | dx4510-b1_firmware | to 5.17(abyl.10.1 (exc) |
| zyxel | dx4510-b0_firmware | to 5.17(abyl.10.1 (exc) |
| zyxel | dx3301-t0_firmware | to 5.50(abvy.7.1 (exc) |
| zyxel | dx3300-t1_firmware | to 5.50(abvy.7.1 (exc) |
| zyxel | dx3300-t0_firmware | to 5.50(abvy.7.1 (exc) |
| zyxel | ee6510-10_firmware | to 5.19(acjq.4.1 (exc) |
| zyxel | emg3525-t50b_firmware | to 5.50(abpm.9.7 (exc) |
| zyxel | emg5523-t50b_firmware | to 5.50(abpm.9.7 (exc) |
| zyxel | ex2210-t0_firmware | to 5.50(acdi.2.3 (exc) |
| zyxel | ex3300-t0_firmware | to 5.50(abvy.7.1 (exc) |
| zyxel | ex3300-t1_firmware | to 5.50(abvy.7.1 (exc) |
| zyxel | ex3301-t0_firmware | to 5.50(abvy.7.1 (exc) |
| zyxel | ex3500-t0_firmware | to 5.44(achr.5.1 (exc) |
| zyxel | ex3501-t0_firmware | to 5.44(achr.5.1 (exc) |
| zyxel | ex3510-b0_firmware | to 5.17(abup.15.2 (exc) |
| zyxel | ex3510-b1_firmware | to 5.17(abup.15.2 (exc) |
| zyxel | ex3600-t0_firmware | to 5.70(acif.2.1 (exc) |
| zyxel | ex5401-b1_firmware | to 5.17(abyo.7.1 (exc) |
| zyxel | ex5510-b0_firmware | to 5.17(abqx.11.1 (exc) |
| zyxel | ex5512-t0_firmware | to 5.70(aceg.5.3 (exc) |
| zyxel | ex5601-t0_firmware | to 5.70(acdz.5.1 (exc) |
| zyxel | ex5601-t1_firmware | to 5.70(acdz.5.1 (exc) |
| zyxel | ex7501-b0_firmware | to 5.18(achn.3.1 (exc) |
| zyxel | ex7710-b0_firmware | to 5.18(acak.1.6 (exc) |
| zyxel | gm4100-b0_firmware | to 5.18(accl.2 (exc) |
| zyxel | pm7500-00_firmware | to 5.61(ackk.1.2 (exc) |
| zyxel | vmg3625-t50b_firmware | to 5.50(abpm.9.7 (exc) |
| zyxel | vmg4005-b50a_firmware | to 5.17(abqa.3.2 (exc) |
| zyxel | vmg4005-b60a_firmware | to 5.17(abqa.3.2 (exc) |
| zyxel | ax7501-b1_firmware | to 5.17(abpc.7.1 (exc) |
| zyxel | pe3301-00_firmware | to 5.63(acmt.2.1 (exc) |
| zyxel | pe5301-01_firmware | to 5.63(acoj.2.1 (exc) |
| zyxel | pm3100-t0_firmware | to 5.42(acbf.4.1 (exc) |
| zyxel | pm5100-t0_firmware | to 5.42(acbf.4.1 (exc) |
| zyxel | pm5100-t1_firmware | to 5.42(acbf.4.1 (exc) |
| zyxel | pm7300-t0_firmware | to 5.42(abyy.4.1 (exc) |
| zyxel | px3321-t1_firmware | to 5.44(achk.3 (exc) |
| zyxel | px3321-t1_firmware | to 5.44(acjb.1.5 (exc) |
| zyxel | px5301-t0_firmware | to 5.44(ackb.0.6 (exc) |
| zyxel | vmg8623-t50b_firmware | to 5.50(abpm.9.7 (exc) |
| zyxel | we3300-00_firmware | to 5.70(acka.1.1 (exc) |
| zyxel | wx3100-t0_firmware | to 5.50(abvl.4.9 (exc) |
| zyxel | wx3401-b1_firmware | to 5.17(abve.2.10 (exc) |
| zyxel | wx5600-t0_firmware | to 5.70(aceb.5.1 (exc) |
| zyxel | wx5610-b0_firmware | to 5.18(acgj.0.5 (exc) |
| zyxel | dm4200-b0_firmware | to 5.17(acbs.1.6 (exc) |
| zyxel | we4600-00_firmware | to 6.70(ackt.0 (exc) |
| zyxel | emg6726-b10a_firmware | to 5.13(abnp.8.2 (exc) |
| zyxel | am7510-00_firmware | to 5.63(acoe.0.1 (exc) |
| zyxel | vmg4927-b50a_firmware | to 5.13(ably.10.2 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-78 | The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a post-authentication command injection issue found in the log file download function of Zyxel EX3301-T0 devices running firmware versions up to 5.50(ABVY.7)C0. It allows an authenticated attacker to execute arbitrary operating system commands on the affected device.
How can this vulnerability impact me? :
An attacker who successfully exploits this vulnerability can execute arbitrary OS commands on the device, potentially leading to full compromise of the device. This can result in unauthorized access, data theft, disruption of services, or further attacks within the network.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know
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