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Vulnerability record · CVE-2023-37929 · published 21 May 2024

CVE-2023-37929: Zyxel dx3300-t1 firmware classic buffer overflow vulnerability

Zyxel · Dx3300 T1 Firmware

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.

6.5 CVSS 3.1 Medium EPSS 0.55% · top 55.9% CWE-120 · Classic buffer overflow
6.5CVSS 3.1 base score
0.55%EPSS exploitation probability, 30 days
NoNot in CISA KEV
32Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

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.

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

Affected products

32 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-buffer-overflow-vulnerabilities- Vendor Advisory
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-buffer-overflow-vulnerabilities- Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2025-13943Zyxel ex5601-t1 firmware os command injection vulnerabilityA post-authentication command injection vulnerability in the log file download function of the Zyxel EX3301-T0 firmware versions through 5.50(ABVY.7)…EPSS 1.4%8.8CVE-2025-8693Zyxel dm4200-b0 firmware os command injection vulnerabilityA post-authentication command injection vulnerability in the "priv" parameter of Zyxel DX3300-T0 firmware version 5.50(ABVY.6.3)C0 and earlier could …EPSS 1.1%8.8CVE-2022-43390Zyxel lte7480-m804 firmware os command injection vulnerabilityA command injection vulnerability in the CGI program of Zyxel NR7101 firmware prior to V1.15(ACCC.3)C0, which could allow an authenticated attacker t…EPSS 1.1%8.0CVE-2022-26413Zyxel vmg3312-t20a firmware os command injection vulnerabilityA command injection vulnerability in the CGI program of Zyxel VMG3312-T20A firmware version 5.30(ABFX.5)C0 could allow a local authenticated attacker…EPSS 0.70%7.5CVE-2025-6599Zyxel lte3301-plus firmware uncontrolled resource consumption vulnerabilityAn uncontrolled resource consumption vulnerability in the web server of Zyxel DX3301-T0 firmware version 5.50(ABVY.6.3)C0 and earlier could allow an …EPSS 0.31%7.5CVE-2024-8748Zyxel lte3301-plus firmware classic buffer overflow vulnerabilityA buffer overflow vulnerability in the packet parser of the third-party library "libclinkc" in Zyxel VMG8825-T50K firmware versions through V5.50(ABO…EPSS 0.52%7.5CVE-2024-5412Zyxel nebula lte3301-plus firmware classic buffer overflow vulnerabilityA buffer overflow vulnerability in the library "libclinkc" of the Zyxel VMG8825-T50K firmware version 5.50(ABOM.8)C0 could allow an unauthenticated a…EPSS 0.66%7.2CVE-2026-1460Zyxel nebula fwa70 firmware os command injection vulnerabilityA post-authentication command injection vulnerability in the “DomainName” parameter of the DHCP configuration file in Zyxel DX3301-T0 and EX3301-T0 f…EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2023-37929), CISA KEV, FIRST EPSS (scores of 2026-10-10). This page is refreshed as NVD updates the record.