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MEDIUM · 4.9

CVE-2025-11845

A null pointer dereference vulnerability in the certificate downloader CGI program of the Zyxel VMG3625-T50B firmware versions through 5.50(ABPM.9.6)C0 and the Zyxel WX3100-T0 firmware versions throug...

Vulnerability Description

A null pointer dereference vulnerability in the certificate downloader CGI program of the Zyxel VMG3625-T50B firmware versions through 5.50(ABPM.9.6)C0 and the Zyxel WX3100-T0 firmware versions through 5.50(ABVL.4.8)C0 could allow an authenticated attacker with administrator privileges to trigger a denial-of-service (DoS) condition by sending a crafted HTTP request.

CVSS Score

4.9

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
ZyxelLte3301-Plus Firmware< 1.00\(abqu.9\)c0
ZyxelLte3301-Plus-
ZyxelNebula Fwa505 Firmware< 1.60\(acko.2\)v0
ZyxelNebula Fwa505-
ZyxelNebula Fwa510 Firmware< 1.60\(acgd.0\)c0
ZyxelNebula Fwa510-
ZyxelNebula Fwa515 Firmware< 1.60\(acpz.0\)v0
ZyxelNebula Fwa515-
ZyxelNebula Fwa710 Firmware< 1.60\(acgc.1\)v0
ZyxelNebula Fwa710-
ZyxelEe5301-00 Firmware< 5.63\(acld.2.1\)c0
ZyxelEe5301-00-
ZyxelEe3301-00 Firmware< 5.63\(acmu.2.1\)c0
ZyxelEe3301-00-
ZyxelDx5401-B1 Firmware< 5.17\(abyo.7.1\)c0
ZyxelDx5401-B1-
ZyxelDx4510-B1 Firmware< 5.17\(abyl.10.1\)c0
ZyxelDx4510-B1-
ZyxelDx4510-B0 Firmware< 5.17\(abyl.10.1\)c0
ZyxelDx4510-B0-

Related Weaknesses (CWE)

CWE-476

References

FAQ

What is CVE-2025-11845?

CVE-2025-11845 is a vulnerability with a CVSS score of 4.9 (MEDIUM). A null pointer dereference vulnerability in the certificate downloader CGI program of the Zyxel VMG3625-T50B firmware versions through 5.50(ABPM.9.6)C0 and the Zyxel WX3100-T0 firmware versions throug...

How severe is CVE-2025-11845?

CVE-2025-11845 has been rated MEDIUM with a CVSS base score of 4.9/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-11845?

Check the references section above for vendor advisories and patch information. Affected products include: Zyxel Lte3301-Plus Firmware, Zyxel Lte3301-Plus, Zyxel Nebula Fwa505 Firmware, Zyxel Nebula Fwa505, Zyxel Nebula Fwa510 Firmware.