Medium 4.9Published Feb 23, 2026

CVE-2025-11847A null pointer dereference vulnerability in the IP settings 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(ABV…

Updated under an hour ago (Oct 27, 2026, 8:25 PM ET)

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Every CVE for Zyxel VMG3625-T50B firmware

Exploited in the last 30 days

A null pointer dereference vulnerability in the IP settings 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: 4.9 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-476
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Zyxel
NVD analysis: Analyzed
Record last updated: Feb 24, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Zyxel VMG3625-T50B firmware zyxel:vmg3625_t50b_firmware (from the name)	through 5.50(ABPM.9.6)C0	CNA record
Zyxel WX3100-T0 firmware zyxel:wx3100_t0_firmware (from the name)	through 5.50(ABVL.4.8)C0	CNA record
zyxel ex3510-b1_firmware zyxel:ex3510-b1_firmware	before 5.17\(abup.15.2\)c0	NVD
zyxel ex3600-t0_firmware zyxel:ex3600-t0_firmware	before 5.70\(acif.2.1\)c0	NVD
zyxel ex5401-b1_firmware zyxel:ex5401-b1_firmware	before 5.17\(abyo.7.1\)c0	NVD
zyxel ex5510-b0_firmware zyxel:ex5510-b0_firmware	before 5.17\(abqx.11.1\)c0	NVD
zyxel ex5512-t0_firmware zyxel:ex5512-t0_firmware	before 5.70\(aceg.5.3\)c0	NVD
zyxel ex5601-t0_firmware zyxel:ex5601-t0_firmware	before 5.70\(acdz.5.1\)c0	NVD
zyxel ex5601-t1_firmware zyxel:ex5601-t1_firmware	before 5.70\(acdz.5.1\)c0	NVD
zyxel ex7501-b0_firmware zyxel:ex7501-b0_firmware	before 5.18\(achn.3.1\)c0	NVD
1–10 of 56

References

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-null-pointer-dereference-and-command-injection-vulnerabilities-in-certain-4g-lte-5g-nr-cpe-dsl-ethernet-cpe-fiber-onts-security-routers-and-wireless-extenders-02-24-2026	vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.