#VU97666 Buffer overflow in ZyXEL Communications Corp. products - CVE-2024-38268

Vulnerability identifier: #VU97666

Vulnerability risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-38268

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
DX3300-T0
Hardware solutions / Routers & switches, VoIP, GSM, etc
DX3300-T1
Hardware solutions / Routers & switches, VoIP, GSM, etc
DX3301-T0
Hardware solutions / Routers & switches, VoIP, GSM, etc
DX4510-B1
Hardware solutions / Routers & switches, VoIP, GSM, etc
DX5401-B1
Hardware solutions / Routers & switches, VoIP, GSM, etc
EX3300-T0
Hardware solutions / Routers & switches, VoIP, GSM, etc
EX3300-T1
Hardware solutions / Routers & switches, VoIP, GSM, etc
EX3301-T0
Hardware solutions / Routers & switches, VoIP, GSM, etc
EX3500-T0
Hardware solutions / Routers & switches, VoIP, GSM, etc
EX3501-T0
Hardware solutions / Routers & switches, VoIP, GSM, etc
EX3510-B1
Hardware solutions / Routers & switches, VoIP, GSM, etc
EX3600-T0
Hardware solutions / Routers & switches, VoIP, GSM, etc
EX5401-B1
Hardware solutions / Routers & switches, VoIP, GSM, etc
EX5512-T0
Hardware solutions / Routers & switches, VoIP, GSM, etc
EX5601-T0
Hardware solutions / Routers & switches, VoIP, GSM, etc
EX5601-T1
Hardware solutions / Routers & switches, VoIP, GSM, etc
EX7501-B0
Hardware solutions / Routers & switches, VoIP, GSM, etc
EX7710-B0
Hardware solutions / Routers & switches, VoIP, GSM, etc
VMG4005-B50A
Hardware solutions / Routers & switches, VoIP, GSM, etc
VMG4005-B60A
Hardware solutions / Routers & switches, VoIP, GSM, etc
AX7501-B1
Hardware solutions / Routers & switches, VoIP, GSM, etc
PM3100-T0
Hardware solutions / Routers & switches, VoIP, GSM, etc
PM5100-T0
Hardware solutions / Routers & switches, VoIP, GSM, etc
PX3321-T1
Hardware solutions / Routers & switches, VoIP, GSM, etc
SCR50AXE
Hardware solutions / Routers & switches, VoIP, GSM, etc
WX3100-T0
Hardware solutions / Routers & switches, VoIP, GSM, etc
WX3401-B0
Hardware solutions / Routers & switches, VoIP, GSM, etc
WX5600-T0
Hardware solutions / Routers & switches, VoIP, GSM, etc
DX4510-B0
Hardware solutions / Firmware
AX7501-B0
Hardware solutions / Firmware
DX5401-B0
Hardware solutions / Routers for home users
EX3510-B0
Hardware solutions / Routers for home users
EX5401-B0
Hardware solutions / Routers for home users
EX5510-B0
Hardware solutions / Routers for home users
EMG3525-T50B
Hardware solutions / Routers for home users
EMG5523-T50B
Hardware solutions / Routers for home users
EMG5723-T50K
Hardware solutions / Routers for home users
VMG3625-T50B
Hardware solutions / Routers for home users
VMG3927-T50K
Hardware solutions / Routers for home users
VMG8623-T50B
Hardware solutions / Routers for home users
VMG8825-T50K
Hardware solutions / Routers for home users
PM7300-T0
Hardware solutions / Routers for home users

Vendor: ZyXEL Communications Corp.

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in the MAC address parser. A remote administrator can trigger memory corruption and cause a denial of service condition on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

DX3300-T0: 5.50(ABVY.5)C0

DX3300-T1: 5.50(ABVY.5)C0

DX3301-T0: 5.50(ABVY.5)C0

DX4510-B0: 5.17(ABYL.6)C0

DX4510-B1: 5.17(ABYL.6)C0

DX5401-B0: 5.17(ABYO.6)C0

DX5401-B1: 5.17(ABYO.6)C0

EX3300-T0: 5.50(ABVY.5)C0

EX3300-T1: 5.50(ABVY.5)C0

EX3301-T0: 5.50(ABVY.5)C0

EX3500-T0: 5.44(ACHR.1)C0

EX3501-T0: 5.44(ACHR.1)C0

EX3510-B0: 5.17(ABUP.11)C0

EX3510-B1: 5.17(ABUP.11)C0

EX3600-T0: 5.70(ACIF.0.2)C0

EX5401-B0: 5.17(ABYO.6)C0

EX5401-B1: 5.17(ABYO.6)C0

EX5510-B0: 5.17(ABQX.9)C0

EX5512-T0: 5.70(ACEG.3)C1

EX5601-T0: 5.70(ACDZ.3)C0

EX5601-T1: 5.70(ACDZ.3)C0

EX7501-B0: 5.18(ACHN.1)C0

EX7710-B0: 5.18(ACAK.1)C0

EMG3525-T50B: 5.50(ABPM.9)C0

EMG5523-T50B: 5.50(ABPM.9)C0

EMG5723-T50K: 5.50(ABOM.8)C0

VMG3625-T50B: 5.50(ABPM.9)C0

VMG3927-T50K: 5.50(ABOM.8)C0

VMG4005-B50A: 5.17(ABQA.2)C0

VMG4005-B60A: 5.17(ABQA.2)C0

VMG8623-T50B: 5.50(ABPM.9)C0

VMG8825-T50K: 5.50(ABPY.1)b24 - 5.50(ABOM.8)C0

AX7501-B0: 5.17(ABPC.5)C0

AX7501-B1: 5.17(ABPC.5)C0

PM3100-T0: 5.42(ACBF.2)C0

PM5100-T0: 5.42(ACBF.2)C0

PM7300-T0: 5.42(ABYY.2.1)C0

PX3321-T1: 5.44(ACJB.0)C0

SCR50AXE: 1.10(ACGN.2)C0

WX3100-T0: 5.50(ABVL.4.2)C0

WX3401-B0: 5.17(ABVE.2.4)C0

WX5600-T0: 5.70(ACEB.3)C0

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External links
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-post-authentication-memory-corruption-vulnerabilities-in-some-dsl-ethernet-cpe-fiber-ont-wifi-extender-and-security-router-versions-09-24-2024

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.