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CVE-2023-37929

MEDIUM
6.5
CVSS Score
Published: May 21, 2024 at 01:23 AM UTC
Updated: June 17, 2026 at 06:08 AM UTC
64 products affected across 1 vendorEmg3525-t50b FirmwareEmg5523-t50b FirmwareVmg8623-t50b Firmware

Using V5.50(ABPM.8)C0 firmware by Zyxel?

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

The buffer overflow vulnerability in the CGI program of the VMG3625-T50B firmware version V5.50(ABPM.8)C0 could allow an authenticated remote attacker to cause denial of service (DoS) conditions by sending a crafted HTTP request to a vulnerable device.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

AX7501-B0 firmware· Zyxel
95%
5.17(abpc.4)c0
zyxel-ax7501-b0 (same device)
Ax7501-b1 Firmware· Zyxel
95%
5.17(abpc.4)c0
DX3300-T1 firmware· Zyxel
95%
5.50(aby.4)c0
zyxel-dx3300-t1 (same device)
DX3301-T0 firmware· Zyxel
95%
5.50(aby.4)c0
zyxel-dx3301-t0 (same device)
DX4510 Firmware· Zyxel
95%
5.17(abyl.5)c0
zyxel-dx4510 (same device)
DX5401-B0 firmware· Zyxel
95%
5.17(abyo.5)c0
zyxel-dx5401-b0 (same device)
Dx5401-b1 Firmware· Zyxel
95%
5.17(abyo.5)c0
zyxel-dx5401-b1 (same device)
Emg3525-t50b Firmware· Zyxel
95%
5.50(abpm.8)c0
zyxel-emg3525-t50b (same device)
Emg5523-t50b Firmware· Zyxel
95%
5.50(abpm.8)c0
zyxel-emg5523-t50b (same device)
Emg5723-t50k Firmware· Zyxel
95%
5.50(abom.8.2)c0
zyxel-emg5723-t50k (same device)

References (1)

Vendor Advisory
Source: [email protected]
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-buffer-overflow-vulnerabilities-in-some-5g-nr-4g-lte-cpe-dsl-ethernet-cpe-fiber-ont-wifi-extender-and-home-router-devices-05-21-2024

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMZyxel
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-120

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