SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

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 through 5.50(ABVL.4.8)C0 could allow an authenticated…

MEDIUM 4.9EPSS 0.78%

Does this matter?

Lower severity and a low EPSS score (0.78%). Track it; it rarely justifies an emergency change on its own.

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 3.1
4.9 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
EPSS
0.78% probability · 54th percentile
CISA KEV
Not listed
Weakness
CWE-476
Affected
zyxel/lte3301-plus firmware · zyxel/nebula fwa505 firmware · zyxel/nebula fwa510 firmware · zyxel/nebula fwa515 firmware · zyxel/nebula fwa710 firmware · zyxel/ee5301-00 firmware · zyxel/ee3301-00 firmware · zyxel/dx5401-b1 firmware · zyxel/dx4510-b1 firmware · zyxel/dx4510-b0 firmware · zyxel/dx3301-t0 firmware · zyxel/dx3300-t1 firmware · zyxel/dx3300-t0 firmware · zyxel/nebula lte3301-plus firmware · zyxel/ee6510-10 firmware · zyxel/emg3525-t50b firmware · zyxel/emg5523-t50b firmware · zyxel/ex2210-t0 firmware · zyxel/ex3300-t0 firmware · zyxel/ex3300-t1 firmware · +34 more
Source
security@zyxel.com.tw

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.