Is CVE-2026-41926 actively exploited?

No active exploitation of CVE-2026-41926 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-41926 be exploited remotely?

Yes. CVE-2026-41926 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-41926?

CVE-2026-41926 has a CVSS score of 9.3 (CRITICAL).

HOME VULNERABILITIESCVE-2026-41926

CRITICAL

CVE-2026-41926

CWE-78Published: May 4, 2026· Updated: May 5, 2026

9.3

CVSS v3.1

EPSS:0.44%probability of exploitation in 30 daysPercentile:63.1th

Official Description

WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains an OS command injection vulnerability in the firewall.cgi binary across five request handlers that apply insufficient input validation. Attackers can inject arbitrary shell commands through vulnerable parameters like websURLFilter, websHostFilter, portForward, singlePortForward, and ipportFilter using subshell syntax or unfiltered parameters, with payloads persisting in NVRAM and re-executing on every subsequent firewall.cgi request.

NVD Source

Technical Analysis

CVE-2026-41926 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeX

Impact

Confidentiality

Integrity

Availability

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X