Is CVE-2026-41927 actively exploited?

No active exploitation of CVE-2026-41927 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-41927 be exploited remotely?

Yes. CVE-2026-41927 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-41927?

CVE-2026-41927 has a CVSS score of 8.3 (HIGH).

HOME VULNERABILITIESCVE-2026-41927

HIGH

CVE-2026-41927

CWE-121Published: May 4, 2026· Updated: May 5, 2026

8.3

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:12.6th

Official Description

WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains a stack-based buffer overflow vulnerability in the firewall.cgi and makeRequest.cgi binaries that allows unauthenticated attackers to overwrite the saved return address by sending a POST request with a Content-Length header exceeding 512 bytes. Attackers can exploit insufficient length validation in the fgets() call to achieve arbitrary code execution through return-oriented programming or return-to-libc techniques.

NVD Source

Technical Analysis

CVE-2026-41927 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 ComplexityHigh

Privileges Req.None

User InteractionNone

ScopeX

Impact

Confidentiality

Integrity

Availability

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/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