Medium severity4.9NVD Advisory· Published Feb 24, 2026· Updated Jun 17, 2026

CVE-2025-11847

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Zyxel/Ax7501 B1 Firmware
cpe:2.3:o:zyxel:ax7501-b1_firmware:*:*:*:*:*:*:*:*
Range: <5.17\(abpc.7.1\)c0
Zyxel/Dx3300 T0 Firmware
cpe:2.3:o:zyxel:dx3300-t0_firmware:*:*:*:*:*:*:*:*
Range: <5.50\(abvy.7.1\)c0
Zyxel/Dx3300 T1 Firmware
cpe:2.3:o:zyxel:dx3300-t1_firmware:*:*:*:*:*:*:*:*
Range: <5.50\(abvy.7.1\)c0
Zyxel/Dx3301 T0 Firmware
cpe:2.3:o:zyxel:dx3301-t0_firmware:*:*:*:*:*:*:*:*
Range: <5.50\(abvy.7.1\)c0
Zyxel/Dx4510 B0 Firmware
cpe:2.3:o:zyxel:dx4510-b0_firmware:*:*:*:*:*:*:*:*
Range: <5.17\(abyl.10.1\)c0
Zyxel/Dx4510 B1 Firmware
cpe:2.3:o:zyxel:dx4510-b1_firmware:*:*:*:*:*:*:*:*
Range: <5.17\(abyl.10.1\)c0
Zyxel/Dx5401 B1 Firmware
cpe:2.3:o:zyxel:dx5401-b1_firmware:*:*:*:*:*:*:*:*
Range: <5.17\(abyo.7.1\)c0
Zyxel/Ee3301 00 Firmware
cpe:2.3:o:zyxel:ee3301-00_firmware:*:*:*:*:*:*:*:*
Range: <5.63\(acmu.2.1\)c0
Zyxel/Ee5301 00 Firmware
cpe:2.3:o:zyxel:ee5301-00_firmware:*:*:*:*:*:*:*:*
Range: <5.63\(acld.2.1\)c0
Zyxel/Ee6510 10 Firmware
cpe:2.3:o:zyxel:ee6510-10_firmware:*:*:*:*:*:*:*:*
Range: <5.19\(acjq.4.1\)c0
Zyxel/Emg3525 T50b Firmware
cpe:2.3:o:zyxel:emg3525-t50b_firmware:*:*:*:*:*:*:*:*
Range: <5.50\(abpm.9.7\)c0
Zyxel/Emg5523 T50b Firmware
cpe:2.3:o:zyxel:emg5523-t50b_firmware:*:*:*:*:*:*:*:*
Range: <5.50\(abpm.9.7\)c0
Zyxel/Ex2210 T0 Firmware
cpe:2.3:o:zyxel:ex2210-t0_firmware:*:*:*:*:*:*:*:*
Range: <5.50\(acdi.2.3\)c0
Zyxel/Ex3300 T0 Firmware
cpe:2.3:o:zyxel:ex3300-t0_firmware:*:*:*:*:*:*:*:*
Range: <5.50\(abvy.7.1\)c0
Zyxel/Ex3300 T1 Firmware
cpe:2.3:o:zyxel:ex3300-t1_firmware:*:*:*:*:*:*:*:*
Range: <5.50\(abvy.7.1\)c0
Zyxel/Ex3301 T0 Firmware
cpe:2.3:o:zyxel:ex3301-t0_firmware:*:*:*:*:*:*:*:*
Range: <5.50\(abvy.7.1\)c0
Zyxel/Ex3500 T0 Firmware
cpe:2.3:o:zyxel:ex3500-t0_firmware:*:*:*:*:*:*:*:*
Range: <5.44\(achr.5.1\)c0
Zyxel/Ex3501 T0 Firmware
cpe:2.3:o:zyxel:ex3501-t0_firmware:*:*:*:*:*:*:*:*
Range: <5.44\(achr.5.1\)c0
Zyxel/Ex3510 B0 Firmware
cpe:2.3:o:zyxel:ex3510-b0_firmware:*:*:*:*:*:*:*:*
Range: <5.17\(abup.15.2\)c0
Zyxel/Ex3510 B1 Firmware
cpe:2.3:o:zyxel:ex3510-b1_firmware:*:*:*:*:*:*:*:*
Range: <5.17\(abup.15.2\)c0
Zyxel/Ex3600 T0 Firmware
cpe:2.3:o:zyxel:ex3600-t0_firmware:*:*:*:*:*:*:*:*
Range: <5.70\(acif.2.1\)c0
Zyxel/Ex5401 B1 Firmware
cpe:2.3:o:zyxel:ex5401-b1_firmware:*:*:*:*:*:*:*:*
Range: <5.17\(abyo.7.1\)c0
Zyxel/Ex5510 B0 Firmware
cpe:2.3:o:zyxel:ex5510-b0_firmware:*:*:*:*:*:*:*:*
Range: <5.17\(abqx.11.1\)c0
Zyxel/Ex5512 T0 Firmware
cpe:2.3:o:zyxel:ex5512-t0_firmware:*:*:*:*:*:*:*:*
Range: <5.70\(aceg.5.3\)c0
Zyxel/Ex5601 T0 Firmware
cpe:2.3:o:zyxel:ex5601-t0_firmware:*:*:*:*:*:*:*:*
Range: <5.70\(acdz.5.1\)c0
Zyxel/Ex5601 T1 Firmware
cpe:2.3:o:zyxel:ex5601-t1_firmware:*:*:*:*:*:*:*:*
Range: <5.70\(acdz.5.1\)c0
Zyxel/Ex7501 B0 Firmware
cpe:2.3:o:zyxel:ex7501-b0_firmware:*:*:*:*:*:*:*:*
Range: <5.18\(achn.3.1\)c0
Zyxel/Ex7710 B0 Firmware
cpe:2.3:o:zyxel:ex7710-b0_firmware:*:*:*:*:*:*:*:*
Range: <5.18\(acak.1.6\)c0
Zyxel/Gm4100 B0 Firmware
cpe:2.3:o:zyxel:gm4100-b0_firmware:*:*:*:*:*:*:*:*
Range: <5.18\(accl.2\)c0
Zyxel/Lte3301 Plus Firmware
cpe:2.3:o:zyxel:lte3301-plus_firmware:*:*:*:*:*:*:*:*
Range: <1.00\(abqu.9\)c0
Zyxel/Nebula Fwa505 Firmware
cpe:2.3:o:zyxel:nebula_fwa505_firmware:*:*:*:*:*:*:*:*
Range: <1.60\(acko.2\)v0
Zyxel/Nebula Fwa510 Firmware
cpe:2.3:o:zyxel:nebula_fwa510_firmware:*:*:*:*:*:*:*:*
Range: <1.60\(acgd.0\)c0
Zyxel/Nebula Fwa515 Firmware
cpe:2.3:o:zyxel:nebula_fwa515_firmware:*:*:*:*:*:*:*:*
Range: <1.60\(acpz.0\)v0
Zyxel/Nebula Fwa710 Firmware
cpe:2.3:o:zyxel:nebula_fwa710_firmware:*:*:*:*:*:*:*:*
Range: <1.60\(acgc.1\)v0
Zyxel/Nebula Lte3301 Plus Firmware
cpe:2.3:o:zyxel:nebula_lte3301-plus_firmware:*:*:*:*:*:*:*:*
Range: <1.18\(acca.6\)v0
Zyxel/Pe3301 00 Firmware
cpe:2.3:o:zyxel:pe3301-00_firmware:*:*:*:*:*:*:*:*
Range: <5.63\(acmt.2.1\)c0
Zyxel/Pe5301 01 Firmware
cpe:2.3:o:zyxel:pe5301-01_firmware:*:*:*:*:*:*:*:*
Range: <5.63\(acoj.2.1\)c0
Zyxel/Pm3100 T0 Firmware
cpe:2.3:o:zyxel:pm3100-t0_firmware:*:*:*:*:*:*:*:*
Range: <5.42\(acbf.4.1\)c0
Zyxel/Pm5100 T0 Firmware
cpe:2.3:o:zyxel:pm5100-t0_firmware:*:*:*:*:*:*:*:*
Range: <5.42\(acbf.4.1\)c0
Zyxel/Pm5100 T1 Firmware
cpe:2.3:o:zyxel:pm5100-t1_firmware:*:*:*:*:*:*:*:*
Range: <5.42\(acbf.4.1\)c0
Zyxel/Pm7300 T0 Firmware
cpe:2.3:o:zyxel:pm7300-t0_firmware:*:*:*:*:*:*:*:*
Range: <5.42\(abyy.4.1\)c0
Zyxel/Pm7500 00 Firmware
cpe:2.3:o:zyxel:pm7500-00_firmware:*:*:*:*:*:*:*:*
Range: <5.61\(ackk.1.2\)c0
Zyxel/Px3321 T1 Firmware
cpe:2.3:o:zyxel:px3321-t1_firmware:*:*:*:*:*:*:*:*
Range: <5.44\(achk.3\)c0
Zyxel/Px5301 T0 Firmware
cpe:2.3:o:zyxel:px5301-t0_firmware:*:*:*:*:*:*:*:*
Range: <5.44\(ackb.0.6\)c0
Zyxel/Scr 50axe Firmware
cpe:2.3:o:zyxel:scr_50axe_firmware:*:*:*:*:*:*:*:*
Range: <1.30\(acgn.0\)c0
Zyxel/Vmg3625 T50b Firmware
cpe:2.3:o:zyxel:vmg3625-t50b_firmware:*:*:*:*:*:*:*:*
Range: <5.50\(abpm.9.7\)c0
Zyxel/Vmg4005 B50a Firmware
cpe:2.3:o:zyxel:vmg4005-b50a_firmware:*:*:*:*:*:*:*:*
Range: <5.17\(abqa.3.2\)c0
Zyxel/Vmg4005 B60a Firmware
cpe:2.3:o:zyxel:vmg4005-b60a_firmware:*:*:*:*:*:*:*:*
Range: <5.17\(abqa.3.2\)c0
Zyxel/Vmg8623 T50b Firmware
cpe:2.3:o:zyxel:vmg8623-t50b_firmware:*:*:*:*:*:*:*:*
Range: <5.50\(abpm.9.7\)c0
Zyxel/We3300 00 Firmware
cpe:2.3:o:zyxel:we3300-00_firmware:*:*:*:*:*:*:*:*
Range: <5.70\(acka.1.1\)c0
Zyxel/Wx3100 T0 Firmware2 versions
cpe:2.3:o:zyxel:wx3100-t0_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:zyxel:wx3100-t0_firmware:*:*:*:*:*:*:*:*range: <5.50\(abvl.4.9\)c0
- (no CPE)range: <= 5.50(ABVL.4.8)C0
Zyxel/Wx3401 B1 Firmware
cpe:2.3:o:zyxel:wx3401-b1_firmware:*:*:*:*:*:*:*:*
Range: <5.17\(abve.2.10\)c0
Zyxel/Wx5600 T0 Firmware
cpe:2.3:o:zyxel:wx5600-t0_firmware:*:*:*:*:*:*:*:*
Range: <5.70\(aceb.5.1\)c0
Zyxel/Wx5610 B0 Firmware
cpe:2.3:o:zyxel:wx5610-b0_firmware:*:*:*:*:*:*:*:*
Range: <5.18\(acgj.0.5\)c0
Zyxel/VMG3625-T50Bllm-fuzzy2 versions
<=5.50(ABPM.9.6)C0+ 1 more
- (no CPE)range: <=5.50(ABPM.9.6)C0
- (no CPE)range: <= 5.50(ABPM.9.6)C0
Zyxel/WX3100-T0llm-fuzzy
Range: <=5.50(ABVL.4.8)C0

Patches

Vulnerability mechanics

References

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-02-24-2026nvdVendor Advisory

News mentions

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