CVE-2025-13943

Published: Feb 24, 2026Modified: Jun 17, 2026

8.8

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability: 2.8 / Impact: 5.9

Source: NVD

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.

Affected (53)

Products: Zyxel: Ex5601 T1 Firmware, Ex7501 B0 Firmware, Ex7710 B0 Firmware, Gm4100 B0 Firmware, Pm7500 00 Firmware, Vmg3625 T50b Firmware, Vmg4005 B50a Firmware, Vmg4005 B60a Firmware, Ax7501 B1 Firmware, Pe3301 00 Firmware, Pe5301 01 Firmware, Pm3100 T0 Firmware, Pm5100 T0 Firmware, Pm5100 T1 Firmware, Pm7300 T0 Firmware, Px3321 T1 Firmware, Px5301 T0 Firmware, Vmg8623 T50b Firmware, We3300 00 Firmware, Wx3100 T0 Firmware, Wx3401 B1 Firmware, Wx5600 T0 Firmware, Wx5610 B0 Firmware, Dm4200 B0 Firmware, We4600 00 Firmware, Emg6726 B10a Firmware, Am7510 00 Firmware, Vmg4927 B50a Firmware, Ex5601 T0 Firmware, Ex5512 T0 Firmware, Ex5510 B0 Firmware, Ex5401 B1 Firmware, Ex3600 T0 Firmware, Ex3510 B1 Firmware, Ex3510 B0 Firmware, Ex3501 T0 Firmware, Ex3500 T0 Firmware, Ex3301 T0 Firmware, Ex3300 T1 Firmware, Ex3300 T0 Firmware, Ex2210 T0 Firmware, Emg5523 T50b Firmware, Emg3525 T50b Firmware, Ee6510 10 Firmware, Dx3300 T0 Firmware, Dx3300 T1 Firmware, Dx3301 T0 Firmware, Dx4510 B0 Firmware, Dx4510 B1 Firmware, Dx5401 B1 Firmware, Ee3301 00 Firmware, Ee5301 00 Firmware

52 products

Vmg3625 T50b Firmware

Vmg4005 B50a Firmware

Vmg4005 B60a Firmware

Vmg8623 T50b Firmware

Emg6726 B10a Firmware

Am7510 00 Firmware

Vmg4927 B50a Firmware

Emg5523 T50b Firmware

Emg3525 T50b Firmware

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Ex5601 T1 Firmware	Before 5.70\(acdz.5.1\)c0

Running on/with	Platform Versions
Zyxel Ex5601 T1	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Ex7501 B0 Firmware	Before 5.18\(achn.3.1\)c0

Running on/with	Platform Versions
Zyxel Ex7501 B0	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Ex7710 B0 Firmware	Before 5.18\(acak.1.6\)c0

Running on/with	Platform Versions
Zyxel Ex7710 B0	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Gm4100 B0 Firmware	Before 5.18\(accl.2\)c0

Running on/with	Platform Versions
Zyxel Gm4100 B0	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Pm7500 00 Firmware	Before 5.61\(ackk.1.2\)c0

Running on/with	Platform Versions
Zyxel Pm7500 00	All versions

Configuration F

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Vmg3625 T50b Firmware	Before 5.50\(abpm.9.7\)c0

Running on/with	Platform Versions
Zyxel Vmg3625 T50b	All versions

Configuration G

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Vmg4005 B50a Firmware	Before 5.17\(abqa.3.2\)c0

Running on/with	Platform Versions
Zyxel Vmg4005 B50a	All versions

Configuration H

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Vmg4005 B60a Firmware	Before 5.17\(abqa.3.2\)c0

Running on/with	Platform Versions
Zyxel Vmg4005 B60a	All versions

Configuration I

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Ax7501 B1 Firmware	Before 5.17\(abpc.7.1\)c0

Running on/with	Platform Versions
Zyxel Ax7501 B1	All versions

Configuration J

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Pe3301 00 Firmware	Before 5.63\(acmt.2.1\)c0

Running on/with	Platform Versions
Zyxel Pe3301 00	All versions

Configuration K

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Pe5301 01 Firmware	Before 5.63\(acoj.2.1\)c0

Running on/with	Platform Versions
Zyxel Pe5301 01	All versions

Configuration L

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Pm3100 T0 Firmware	Before 5.42\(acbf.4.1\)c0

Running on/with	Platform Versions
Zyxel Pm3100 T0	All versions

Configuration M

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Pm5100 T0 Firmware	Before 5.42\(acbf.4.1\)c0

Running on/with	Platform Versions
Zyxel Pm5100 T0	All versions

Configuration N

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Pm5100 T1 Firmware	Before 5.42\(acbf.4.1\)c0

Running on/with	Platform Versions
Zyxel Pm5100 T1	All versions

Configuration O

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Pm7300 T0 Firmware	Before 5.42\(abyy.4.1\)c0

Running on/with	Platform Versions
Zyxel Pm7300 T0	All versions

Configuration P

1 vulnerable

Vulnerable Software	Affected Versions
Zyxel Px3321 T1 Firmware	Before 5.44\(achk.3\)c0

Configuration Q

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Px3321 T1 Firmware	Before 5.44\(acjb.1.5\)c0

Running on/with	Platform Versions
Zyxel Px3321 T1	All versions

Configuration R

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Px5301 T0 Firmware	Before 5.44\(ackb.0.6\)c0

Running on/with	Platform Versions
Zyxel Px5301 T0	All versions

Configuration S

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Vmg8623 T50b Firmware	Before 5.50\(abpm.9.7\)c0

Running on/with	Platform Versions
Zyxel Vmg8623 T50b	All versions

Configuration T

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel We3300 00 Firmware	Before 5.70\(acka.1.1\)c0

Running on/with	Platform Versions
Zyxel We3300 00	All versions

Configuration U

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Wx3100 T0 Firmware	Before 5.50\(abvl.4.9\)c0

Running on/with	Platform Versions
Zyxel Wx3100 T0	All versions

Configuration V

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Wx3401 B1 Firmware	Before 5.17\(abve.2.10\)c0

Running on/with	Platform Versions
Zyxel Wx3401 B1	All versions

Configuration W

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Wx5600 T0 Firmware	Before 5.70\(aceb.5.1\)c0

Running on/with	Platform Versions
Zyxel Wx5600 T0	All versions

Configuration X

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Wx5610 B0 Firmware	Before 5.18\(acgj.0.5\)c0

Running on/with	Platform Versions
Zyxel Wx5610 B0	All versions

Configuration Y

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Dm4200 B0 Firmware	Before 5.17\(acbs.1.6\)c0

Running on/with	Platform Versions
Zyxel Dm4200 B0	All versions

Configuration Z

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel We4600 00 Firmware	Before 6.70\(ackt.0\)c0

Running on/with	Platform Versions
Zyxel We4600 00	All versions

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Emg6726 B10a Firmware	Before 5.13\(abnp.8.2\)c1

Running on/with	Platform Versions
Zyxel Emg6726 B10a	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Am7510 00 Firmware	Before 5.63\(acoe.0.1\)c0

Running on/with	Platform Versions
Zyxel Am7510 00	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Vmg4927 B50a Firmware	Before 5.13\(ably.10.2\)c0

Running on/with	Platform Versions
Zyxel Vmg4927 B50a	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Ex5601 T0 Firmware	Before 5.70\(acdz.5.1\)c0

Running on/with	Platform Versions
Zyxel Ex5601 T0	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Ex5512 T0 Firmware	Before 5.70\(aceg.5.3\)c0

Running on/with	Platform Versions
Zyxel Ex5512 T0	All versions

Configuration F

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Ex5510 B0 Firmware	Before 5.17\(abqx.11.1\)c0

Running on/with	Platform Versions
Zyxel Ex5510 B0	All versions

Configuration G

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Ex5401 B1 Firmware	Before 5.17\(abyo.7.1\)c0

Running on/with	Platform Versions
Zyxel Ex5401 B1	All versions

Configuration H

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Ex3600 T0 Firmware	Before 5.70\(acif.2.1\)c0

Running on/with	Platform Versions
Zyxel Ex3600 T0	All versions

Configuration I

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Ex3510 B1 Firmware	Before 5.17\(abup.15.2\)c0

Running on/with	Platform Versions
Zyxel Ex3510 B1	All versions

Configuration J

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Ex3510 B0 Firmware	Before 5.17\(abup.15.2\)c0

Running on/with	Platform Versions
Zyxel Ex3510 B0	All versions

Configuration K

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Ex3501 T0 Firmware	Before 5.44\(achr.5.1\)c0

Running on/with	Platform Versions
Zyxel Ex3501 T0	All versions

Configuration L

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Ex3500 T0 Firmware	Before 5.44\(achr.5.1\)c0

Running on/with	Platform Versions
Zyxel Ex3500 T0	All versions

Configuration M

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Ex3301 T0 Firmware	Before 5.50\(abvy.7.1\)c0

Running on/with	Platform Versions
Zyxel Ex3301 T0	All versions

Configuration N

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Ex3300 T1 Firmware	Before 5.50\(abvy.7.1\)c0

Running on/with	Platform Versions
Zyxel Ex3300 T1	All versions

Configuration O

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Ex3300 T0 Firmware	Before 5.50\(abvy.7.1\)c0

Running on/with	Platform Versions
Zyxel Ex3300 T0	All versions

Configuration P

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Ex2210 T0 Firmware	Before 5.50\(acdi.2.3\)c0

Running on/with	Platform Versions
Zyxel Ex2210 T0	All versions

Configuration Q

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Emg5523 T50b Firmware	Before 5.50\(abpm.9.7\)c0

Running on/with	Platform Versions
Zyxel Emg5523 T50b	All versions

Configuration R

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Emg3525 T50b Firmware	Before 5.50\(abpm.9.7\)c0

Running on/with	Platform Versions
Zyxel Emg3525 T50b	All versions

Configuration S

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Ee6510 10 Firmware	Before 5.19\(acjq.4.1\)c0

Running on/with	Platform Versions
Zyxel Ee6510 10	All versions

Configuration T

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Dx3300 T0 Firmware	Before 5.50\(abvy.7.1\)c0

Running on/with	Platform Versions
Zyxel Dx3300 T0	All versions

Configuration U

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Dx3300 T1 Firmware	Before 5.50\(abvy.7.1\)c0

Running on/with	Platform Versions
Zyxel Dx3300 T1	All versions

Configuration V

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Dx3301 T0 Firmware	Before 5.50\(abvy.7.1\)c0

Running on/with	Platform Versions
Zyxel Dx3301 T0	All versions

Configuration W

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Dx4510 B0 Firmware	Before 5.17\(abyl.10.1\)c0

Running on/with	Platform Versions
Zyxel Dx4510 B0	All versions

Configuration X

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Dx4510 B1 Firmware	Before 5.17\(abyl.10.1\)c0

Running on/with	Platform Versions
Zyxel Dx4510 B1	All versions

Configuration Y

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Dx5401 B1 Firmware	Before 5.17\(abyo.7.1\)c0

Running on/with	Platform Versions
Zyxel Dx5401 B1	All versions

Configuration Z

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Ee3301 00 Firmware	Before 5.63\(acmu.2.1\)c0

Running on/with	Platform Versions
Zyxel Ee3301 00	All versions

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Ee5301 00 Firmware	Before 5.63\(acld.2.1\)c0

Running on/with	Platform Versions
Zyxel Ee5301 00	All versions

Related CWEs

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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.

References (1)

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-null-pointer-dereference-and-command-injection-vulnerabilities-in-certain-4g-lte-5g-nr-cpe-dsl-ethernet-cpe-fiber-onts-security-routers-and-wireless-extenders-02-24-2026

Source: security@zyxel.com.tw

Vendor Advisory

Timeline

No history available yet.