Is CVE-2025-66286 actively exploited?

No active exploitation of CVE-2025-66286 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-66286 be exploited remotely?

Yes. CVE-2025-66286 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2025-66286?

CVE-2025-66286 has a CVSS score of 4.7 (MEDIUM).

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MEDIUM

CVE-2025-66286

CWE-639Published: April 23, 2026· Updated: Apr 24, 2026

4.7

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:7.9th

Official Description

An API design flaw in WebKitGTK and WPE WebKit allows untrusted web content to unexpectedly perform IP connections, DNS lookups, and HTTP requests. Applications expect to use the

WebPage::send-request signal handler to approve or reject all network requests. However, certain types of HTTP requests bypass this signal handler.

NVD Source

Technical Analysis

CVE-2025-66286 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.